Dental Glossary: Comprehensive Terms for Oral Health and Care

This Dental Glossary is designed to be a thorough and user-friendly reference for anyone who understands key dentistry concepts. Whether you're a dental professional, student, or patient looking to gain insights into treatments, conditions, or oral health practices, this glossary alphabetically offers clear, concise explanations.

Each term is carefully detailed to provide context, practical relevance, and, when applicable, treatment options. This resource covers a broad spectrum of knowledge, from common procedures like teeth whitening and cavity fillings to advanced topics such as dental implants and surgical techniques.

By exploring this glossary, you’ll understand how modern dentistry works, empowering you to make informed oral health and care decisions.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

Abscess

A dental abscess is a painful pocket of pus caused by a bacterial infection in the teeth, gums, or surrounding tissues. It can result from untreated cavities, gum disease, or tooth trauma and often causes severe pain, swelling, fever, and bad breath. Treatment typically involves draining the abscess, prescribing antibiotics, and addressing the underlying issue through procedures like root canals or extractions.

Amalgam Filling

Amalgam fillings are strong and durable restorations made from a mix of metals, including mercury, silver, tin, and copper, commonly used to repair decayed teeth. They are especially effective for molars due to their ability to withstand heavy chewing forces, though their metallic appearance and mercury content may lead some patients to prefer other options.

Anesthesia (Dental)

Dental anesthesia involves techniques to numb the mouth and ensure a pain-free procedure. Common types include local anesthesia for specific areas, nitrous oxide ("laughing gas") for relaxation, and general anesthesia for complex surgeries. These methods are tailored to the patient’s needs and the procedure's complexity.

Apex

The apex is the tip of a tooth’s root, where nerves and blood vessels enter. It plays a crucial role in maintaining the tooth’s vitality. The apex is often the focus of root canal treatments, which aim to remove infection and seal the area to protect the tooth.

Apicoectomy

An apicoectomy is a minor surgical procedure to remove the infected tip of a tooth’s root when a root canal has failed. This procedure helps save the tooth by cleaning and sealing the area to prevent further issues.

Attrition

Attrition is the gradual wearing down of teeth caused by chewing or grinding. It often results in flattened surfaces, sensitivity, or enamel loss. Preventive measures like bite guards and dental treatments can help manage its effects.

Alveolar Bone

The alveolar bone supports and anchors teeth in the jaw. Bone loss in this area, often caused by gum disease or tooth loss, can weaken the jaw structure and require treatments like grafting for restoration.

Abrasion

Abrasion is the loss of tooth enamel caused by mechanical forces, such as aggressive brushing or using abrasive toothpaste. It can lead to sensitivity and an increased risk of cavities, which are often managed by changing habits and applying protective treatments.

Aesthetic Dentistry

Aesthetic dentistry focuses on improving the appearance of teeth and gums through treatments like whitening, veneers, bonding, and orthodontics, helping patients achieve a healthier, more attractive smile.

Anterior Teeth

Anterior teeth include the incisors and canines at the front of the mouth. They are essential for cutting and tearing food. They also play a key role in speech and smile aesthetics.

B

Bruxism

Bruxism is the involuntary grinding or clenching of teeth, often occurring during sleep or times of stress. It can lead to excessive tooth wear, jaw pain, headaches, and even temporomandibular joint (TMJ) disorders. Treatment options include stress management, nightguards, and in severe cases, dental corrections to adjust the bite.

Bridge

A dental bridge is a fixed restoration used to replace one or more missing teeth by anchoring to adjacent healthy teeth or dental implants. It restores the appearance and functionality of the smile, preventing issues like teeth shifting or bone loss. Bridges can be made from materials such as porcelain, metal, or a combination of both.

Bonding (Dental)

Dental bonding is a procedure where a tooth-colored resin material is applied to a tooth, shaped, and hardened with a special light. This treatment repairs chips, cracks, or discoloration and can reshape or lengthen teeth. Bonding is quick, cost-effective, and ideal for minor cosmetic improvements.

Bitewing X-Ray

A bitewing X-ray captures detailed images of the upper and lower teeth in one small section of the mouth, making it ideal for detecting cavities between teeth and assessing bone health. These X-rays are often taken during routine dental check-ups to monitor oral health.

Bicuspid

Bicuspids, or premolars, are the teeth located between the canines and molars. They have a flat surface with ridges for chewing and grinding food and are essential for breaking down food into smaller, digestible pieces. Adults typically have eight bicuspids, four in each jaw.

Biopsy

A dental biopsy involves removing a small sample of oral tissue to diagnose conditions such as oral cancer, infections, or abnormal growths. The tissue is examined under a microscope to determine if further treatment is needed, making it a critical tool for early detection and management of oral diseases.

Bleaching (Teeth Whitening)

Teeth bleaching is a cosmetic procedure designed to remove stains and lighten the color of teeth using peroxide-based solutions. It can be performed in-office for immediate results or at home with custom trays. This treatment enhances smile aesthetics but requires maintenance to preserve results.

Braces

Braces are orthodontic devices that use brackets, wires, and bands to align and straighten teeth while correcting bite issues (malocclusions). They gradually shift teeth into their proper positions, improving both aesthetics and oral health. Modern options include traditional metal braces, ceramic braces, and clear aligners.

Bone Graft

A bone graft is a surgical procedure used to rebuild or augment jawbone density, often necessary before placing dental implants. It involves transplanting bone material from the patient, a donor, or synthetic sources to restore bone volume and support dental restorations.

Biocompatible

Biocompatible materials are those that are safe and non-toxic for use in dental procedures, ensuring they do not cause adverse reactions in the body. These materials, such as titanium for implants or composite resins for fillings, promote healing and long-term success of dental treatments.

C

Cavity

A cavity is a hole or area of decay in a tooth caused by bacteria breaking down sugars into acid, which erodes the enamel and dentin layers. If untreated, it can lead to pain, sensitivity, and infections that may require extensive treatment. Cavities are commonly treated with fillings, inlays, or crowns, depending on the severity, and prevented with proper oral hygiene and regular dental check-ups.

Cementum

Cementum is a calcified tissue that covers the roots of teeth, anchoring them to the jawbone through periodontal ligaments. It protects the root and provides stability for chewing. While not as hard as enamel, cementum is essential for overall tooth structure and health, but it can become exposed and vulnerable due to gum recession or disease.

Composite Resin

Composite resin is a versatile, tooth-colored material used for fillings, bonding, and veneers. It is highly durable and mimics the natural appearance of teeth, making it ideal for aesthetic restorations. This material bonds directly to the tooth structure, providing strength and a seamless finish for both minor and major dental repairs.

Crown

A dental crown is a custom-made cap placed over a damaged or decayed tooth to restore its shape, size, strength, and appearance. Crowns are made from materials such as porcelain, metal, or zirconia and protect the tooth from further damage while enhancing functionality and aesthetics.

Calculus (Tartar)

Calculus, or tartar, is hardened plaque that forms on teeth when not removed through regular brushing and flossing. It can cause gum inflammation, bad breath, and eventually lead to gum disease. Tartar cannot be removed at home and requires professional cleaning by a dentist or hygienist.

Canal

A canal refers to the hollow space within the root of a tooth that houses nerves, blood vessels, and connective tissue. Infections or damage to this area require root canal therapy to clean, disinfect, and seal the canal, preserving the tooth and preventing further complications.

Canines

Canines are the pointed teeth located between the incisors and premolars, designed for tearing and holding food. Humans typically have four canines, two on the upper and two on the lower jaw. They play a vital role in biting, guiding the bite during chewing, and contributing to a balanced smile.

Chronic Periodontitis

Chronic periodontitis is a progressive form of gum disease caused by prolonged bacterial infection and inflammation. It damages the gums and the bone supporting the teeth, leading to tooth mobility and eventual tooth loss if untreated. Treatment includes deep cleaning, medications, and sometimes surgery to halt progression and restore oral health.

Crown Lengthening

Crown lengthening is a surgical procedure to expose more of a tooth's surface by removing excess gum or bone tissue. It is commonly performed to prepare for restorations like crowns or to improve the appearance of a gummy smile, enhancing both functionality and aesthetics.

Cosmetic Dentistry

Cosmetic dentistry focuses on enhancing the appearance of teeth, gums, and smiles through procedures like veneers, whitening, bonding, and orthodontics. It combines artistry with dental expertise to address discoloration, misalignment, chips, or gaps, boosting confidence and oral aesthetics.

D

Dentures

Dentures are removable prosthetic devices that replace missing teeth and surrounding tissues, restoring functionality and aesthetics. Full dentures replace all teeth in the upper or lower arch, while partial dentures fill gaps between remaining natural teeth. They are custom-made for each patient and require proper care to maintain oral health and comfort.

Decay (Dental Caries)

Dental decay, or caries, occurs when bacteria in plaque convert sugars into acid, which erodes tooth enamel. If untreated, it can progress to the dentin and pulp, causing pain, sensitivity, and infection. Treatment includes fillings, crowns, or root canals, while prevention focuses on good oral hygiene and reduced sugar intake.

Dentin

Dentin is the softer layer beneath the enamel and cementum, forming the bulk of a tooth's structure. It contains microscopic tubules connecting to the pulp, making it sensitive when exposed to decay or erosion. Protecting dentin with enamel or restorations is essential to prevent discomfort and further damage.

Dental Implant

A dental implant is a titanium post surgically inserted into the jawbone to act as an artificial tooth root. It provides a stable foundation for crowns, bridges, or dentures, restoring the function and appearance of missing teeth. Implants also prevent bone loss and maintain the jaw's structure over time.

Diastema

A diastema is a gap or space between two teeth, most commonly between the upper front teeth. While often harmless, some patients choose to close the gap using orthodontics, veneers, or bonding for aesthetic or functional reasons. Diastemas can sometimes result from underlying issues like gum disease or improper bite alignment.

Dry Socket

Dry socket is a painful condition after tooth extraction when the protective blood clot dislodges, exposing the underlying bone and nerves. Symptoms include severe pain, bad breath, and a visible empty socket. Treatment involves cleaning the area, applying medicated dressings, and managing pain to promote healing.

Dental Sealant

A dental sealant is a thin, protective coating applied to the chewing surfaces of molars and premolars to prevent cavities. It seals deep grooves and pits where plaque and food particles often accumulate, offering an extra defence against decay, particularly in children and teens.

Dental Hygienist

A dental hygienist is a licensed professional specializing in preventive oral care, including cleaning teeth, removing tartar, and applying fluoride treatments. They also perform oral health assessments, educate patients on proper hygiene practices, and identify potential issues requiring a dentist's attention.

Digital X-Rays

Digital X-rays are advanced imaging tools that diagnose dental issues with minimal radiation exposure. They produce high-resolution images of teeth, roots, and bone structures, aiding in detecting cavities, infections, and bone loss. The digital format allows for quick sharing and enhanced diagnostic accuracy.

E

Edentulism

Edentulism is the loss of all or some natural teeth, which can occur due to decay, gum disease, trauma, or aging. Partial edentulism affects only some teeth, while complete edentulism means no natural teeth remain. This condition can impact chewing, speech, and facial aesthetics, and it is often treated with dentures or dental implants to restore function and appearance.

Enamel

Enamel is the hard outer layer of a tooth that serves as the first line of defence against decay and physical damage. Although it is the most vital substance in the body, it can erode over time due to acid from food, beverages, or improper brushing techniques. Protecting enamel through good oral hygiene and fluoride use is essential to maintaining dental health.

Endodontics

Endodontics is a dental specialty focused on diagnosing and treating diseases of the dental pulp and surrounding tissues. It often involves root canal therapy, a procedure to remove infected or damaged pulp, clean the root canals, and seal them to prevent further infection and preserve the natural tooth.

Eruption

Eruption is the process by which teeth emerge through the gums. This occurs twice in a lifetime—first with primary (baby) teeth, typically between 6 months and 3 years old, and later with permanent teeth, starting around age 6. The timing and sequence of eruption can vary, and complications such as impaction or crowding may require intervention.

Exodontia

Exodontia is the dental field concerned with tooth extraction, performed for reasons such as severe decay, trauma, crowding, or impacted wisdom teeth. Depending on the complexity, extractions can be simple or surgical and are often followed by restorative treatments like implants or bridges to maintain oral health.

Erosion (Dental)

Dental erosion is the chemical loss of enamel due to acid exposure from foods, beverages, or medical conditions like acid reflux. Unlike cavities caused by bacteria, erosion results directly from acid’s effect on enamel, leading to sensitivity, discoloration, and weakened teeth. Preventive measures include limiting acidic foods and using fluoride products.

Eugenol

Eugenol is a natural compound derived from clove oil, widely used in dentistry for its antiseptic, anti-inflammatory, and anesthetic properties. It is commonly found in temporary fillings, sedative dressings, and root canal sealers, relieving pain and reducing infection risk during treatment.

Emergency Dentistry

Emergency dentistry addresses urgent dental issues such as severe pain, broken teeth, infections, or trauma. Immediate treatment is crucial to alleviating discomfort, preventing complications, and restoring oral function. Common procedures include extractions, root canals, and temporary restorations.

Exostosis

Exostosis is the abnormal growth of bone in the jaw or mouth, such as tori (bony projections on the palate or lower jaw). These growths are typically benign and only require removal if they interfere with oral function, such as fitting dentures or irritating.

Epulis

Epulis is a benign growth on the gum tissue, often caused by irritation, trauma, or hormonal changes. While usually painless, larger growths can affect oral function and aesthetics. Treatment involves surgical excision and addressing the underlying cause to prevent recurrence.

F

Fluoride

Fluoride is a naturally occurring mineral essential for strengthening tooth enamel and preventing cavities. It works by remineralizing weakened enamel and making teeth more resistant to bacterial acid attacks. Found in toothpaste, mouth rinses, and fluoridated public water supplies, fluoride is a cornerstone of preventive dental care. Dentists may also apply fluoride treatments for additional protection, particularly for children and individuals prone to decay.

Filling

A dental filling is a restorative procedure to repair a tooth damaged by decay or trauma. Materials like amalgam (a durable metal blend), composite resin (tooth-coloured), and gold fill cavities, restore tooth structure, and prevent further damage. Modern fillings blend aesthetics and function, ensuring long-term protection and a natural appearance.

Frenectomy

A frenectomy is a minor surgical procedure that involves removing or modifying the frenulum, a small fold of tissue in the mouth that connects the lips or tongue to the gums. This procedure is often performed to improve mobility, such as in cases of tongue-tie (ankyloglossia), or to address gaps between teeth caused by a thick frenulum.

Fissure

Fissures are deep grooves or pits found on the chewing surfaces of molars and premolars, making them susceptible to plaque and decay. Since these grooves can be challenging to clean with brushing alone, dental sealants are often applied to fill and protect them, reducing the risk of cavities in these areas.

Flossing

Flossing is an essential oral hygiene practice that involves using dental floss to remove plaque and food particles from between teeth and under the gumline. It prevents gum disease, cavities, and bad breath by reaching areas that brushing cannot. Regular flossing is vital for maintaining healthy gums and teeth..

Fluorosis

Dental fluorosis is a cosmetic condition caused by excessive fluoride intake during tooth development. It results in white spots, streaks, or, in severe cases, brown mottling of the enamel. Although it does not affect tooth function, it can be aesthetically concerning. Prevention involves monitoring fluoride exposure, especially in young children.

Full-Mouth Reconstruction

Full-mouth reconstruction refers to a series of comprehensive dental treatments designed to restore or replace most or all teeth, improving oral function, aesthetics, and health. This process often includes procedures like crowns, bridges, dental implants, veneers, and orthodontics, tailored to address specific needs such as severe decay, tooth loss, or bite issues.

Foramen

A foramen is a natural opening in a bone that allows the passage of nerves and blood vessels. In dentistry, the mental foramen in the lower jaw is particularly significant, as it provides a pathway for nerves and arteries supplying the lower teeth and lip. Understanding its location is crucial during surgical and restorative procedures.

Facial Trauma

Facial trauma refers to injuries to the face or jaw caused by accidents, falls, or sports-related incidents. These injuries can affect teeth, gums, bones, and soft tissues, often requiring emergency dental care, surgical intervention, or reconstruction to restore function and appearance. Prompt treatment is essential to prevent complications.

Fixed Partial Denture

A fixed partial denture, commonly called a dental bridge, is a non-removable restoration used to replace one or more missing teeth. Anchored to adjacent teeth or implants, it restores chewing ability, prevents remaining teeth from shifting, and maintains facial structure. Bridges are designed to blend seamlessly with natural teeth for a functional and aesthetic solution.

G

Gingiva (Gums)

Gingiva, or gums, are the soft tissues that surround and protect the base of the teeth. They form a seal that prevents bacteria from reaching deeper oral structures. Healthy gums are pink, firm, and free from bleeding, while redness, swelling, or tenderness often indicates inflammation or disease, requiring professional care and improved oral hygiene.

Gingivitis

Gingivitis is the earliest stage of gum disease, characterized by redness, swelling, and bleeding, particularly during brushing or flossing. It is caused by plaque buildup at the gumline and is reversible with proper oral hygiene, regular dental cleanings, and addressing contributing factors like smoking or poor diet.

Graft (Gum)

A gum graft is a surgical procedure to repair or rebuild gum tissue lost due to recession or injury. It involves transplanting tissue, often from the roof of the mouth, to cover exposed roots, improve aesthetics, and reduce sensitivity. This procedure also helps prevent further recession and protects the tooth from decay.

General Dentist

A general dentist is a primary dental care provider who offers a wide range of services, including cleanings, fillings, extractions, and crowns. They are trained to diagnose, treat, and prevent oral health issues, serving as the first point of contact for maintaining overall dental wellness and managing referrals to specialists when needed.

Gum Recession

Gum recession occurs when gum tissue pulls back from the teeth, exposing the roots. This condition can result from aggressive brushing, gum disease, or bruxism and often causes sensitivity and increased risk of decay. Treatments include deep cleaning, gum grafting, and lifestyle changes to address the underlying cause.

Grinding (Bruxism)

Grinding, or bruxism, is the involuntary clenching or grinding of teeth, often during sleep or times of stress. It can cause tooth wear, jaw pain, headaches, and even cracks in teeth. Treatment includes using nightguards to protect teeth, managing stress, and correcting bite issues if needed.

Gum Contouring

Gum contouring is a cosmetic dental procedure that reshapes the gumline to improve the appearance of a gummy smile or uneven gums. Using a laser or scalpel, excess gum tissue is removed to expose more of the tooth, creating a balanced and aesthetically pleasing smile

Gutta-Percha

Gutta-percha is a biocompatible, rubber-like material used in root canal therapy to fill the cleaned and shaped root canals of a tooth. It seals the space to prevent reinfection and provides structural support for the tooth, often followed by a crown for additional protection.

Gold Crown

A gold crown is a dental restoration made from gold or a gold alloy, prized for its durability, longevity, and compatibility with oral tissues. While less common for visible teeth due to its metallic appearance, it is an excellent choice for molars, where strength is essential for chewing.

Gag Reflex

The gag reflex is an involuntary reaction triggered when the back of the mouth or throat is touched, often causing discomfort during dental procedures. Dentists manage this response using techniques such as distraction, numbing sprays, or sedation, ensuring a more comfortable experience for the patient.

H

Halitosis

Halitosis, or persistent bad breath, is often caused by poor oral hygiene, gum disease, or food debris accumulating in the mouth. Other causes include dry mouth, smoking, or systemic conditions such as diabetes or gastrointestinal issues. Proper brushing, flossing, tongue cleaning, and regular dental check-ups can help address the issue, while underlying medical conditions may require specialized treatment.

Hypodontia

Hypodontia is a congenital condition where one or more permanent teeth fail to develop, most commonly affecting incisors, premolars, or molars. This can cause bite issues, gaps, or alignment problems, often managed with orthodontics, dental implants, or bridges to restore functionality and aesthetics.

Hyperplasia

Hyperplasia refers to the abnormal overgrowth of tissue, such as gum enlargement, which can result from irritation, certain medications, or conditions like hormonal changes. While often painless, it can interfere with oral hygiene and aesthetics, requiring treatments like scaling, surgery, or medication adjustments.

Hemostasis

Hemostasis is the process of stopping bleeding, essential during and after dental surgeries or extractions. Techniques include applying pressure, sutures, or hemostatic agents to promote clotting and protect the surgical site, ensuring proper healing and minimizing complications.

Hybrid Dentures

Hybrid dentures are a type of implant-supported prosthesis that combines the stability of dental implants with the aesthetics and functionality of traditional dentures. They are permanently fixed, offering a secure and natural-looking solution for patients with significant tooth loss while preventing bone resorption.

Hypersensitivity (Dental)

Dental hypersensitivity is a sharp pain or discomfort triggered by exposure to hot, cold, sweet, or acidic foods due to exposed dentin or gum recession. Treatments include desensitizing toothpaste, fluoride applications, or protective restorations to reduce sensitivity and strengthen enamel.

Hemisection

Hemisection is a surgical procedure where one half of a molar, including its root, is removed due to damage or infection. The remaining healthy portion of the tooth is preserved and restored with a crown, maintaining functionality and avoiding the need for extraction.

Healing Abutment

A healing abutment is a temporary component placed over a dental implant during the healing phase. It helps shape the gum tissue around the implant, preparing the site for the final restoration, such as a crown or bridge.

Hyperdontia

Hyperdontia is a condition where extra teeth, called supernumerary teeth, develop in the mouth. These additional teeth can cause crowding, misalignment, or delayed eruption of permanent teeth. Treatment typically involves extraction and orthodontic intervention to correct alignment and restore a balanced smile.

I

Impaction

Impaction occurs when a tooth is unable to fully erupt into the mouth due to insufficient space, misalignment, or blockage by neighboring teeth or bone. This condition is most commonly seen with wisdom teeth, which may remain partially or fully embedded in the jawbone or gums. Impacted teeth can cause pain, swelling, infection, or misalignment of adjacent teeth and often require surgical extraction.

Implant (Dental)

A dental implant is a titanium post surgically placed into the jawbone to act as an artificial root for a missing tooth. Over time, the implant integrates with the bone, creating a stable foundation for crowns, bridges, or dentures. Implants are a durable and natural-looking solution for restoring function and appearance, preventing bone loss and preserving facial structure.

Incisor

Incisors are the flat, sharp teeth at the front of the mouth, designed for cutting and slicing food. Adults typically have eight incisors—four in the upper jaw and four in the lower jaw. These teeth also play a significant role in speech and contribute to the overall aesthetics of a smile.

Inlay

An inlay is a custom-made dental restoration used to repair cavities or damage within the grooves of a tooth, without covering its cusps. Made from durable materials such as porcelain, composite resin, or gold, inlays provide a long-lasting and aesthetically pleasing solution for restoring the tooth’s function and integrity.

Intravenous (IV) Sedation

IV sedation involves administering sedatives directly into the bloodstream during dental procedures to help patients remain calm and relaxed. This method is commonly used for complex treatments, such as oral surgery or for patients with severe dental anxiety, ensuring a pain-free and comfortable experience.

Impression

A dental impression is a mold created to capture the exact shape of the teeth and gums. This is essential for designing crowns, bridges, dentures, or orthodontic appliances. Impressions can be made using traditional putty-like materials or advanced digital scanning technologies for precise results.

Interdental Cleaning

Interdental cleaning involves removing plaque and food particles from between teeth, areas that a toothbrush cannot reach. Tools such as dental floss, interdental brushes, or water flossers are used to prevent cavities and gum disease, maintaining overall oral health.

Irrigation

Irrigation is a technique used during dental procedures to clean and disinfect the tooth or surgical site. A sterile liquid, such as saline or chlorhexidine, is applied to remove debris, bacteria, and infection, ensuring a clean environment for healing.

Invisalign

Invisalign is a brand of clear, removable aligners used in orthodontic treatment to straighten teeth discreetly. Custom-made for each patient, these aligners gradually shift teeth into their correct positions without the need for traditional braces. Invisalign is popular for its aesthetic appeal and convenience, as they can be removed for eating and cleaning.

Immediate Dentures

Immediate dentures are prosthetic devices placed in the mouth immediately after tooth extraction. They allow patients to maintain functionality and appearance while the gums and jaw adjust. Once healing is complete, adjustments or a permanent set of dentures may be required for optimal fit.

J

Jawbone (Mandible and Maxilla)

The jawbone consists of two main components: the mandible (lower jaw) and the maxilla (upper jaw). Together, they form the framework of the mouth, support the teeth, and play essential roles in chewing, speaking, and maintaining facial structure. A healthy jawbone is critical for dental and overall oral function, with issues like bone loss requiring intervention to preserve functionality.

Jaw Alignment

Jaw alignment refers to positioning the upper (maxilla) and lower (mandible) jaws in relation to each other. Proper alignment ensures an even bite, effective chewing, and facial symmetry. Misalignment can lead to malocclusions, jaw pain, or speech difficulties and is often corrected with orthodontics, surgery, or other dental treatments.

Joint Disorders (TMJ/TMD)

Temporomandibular joint (TMJ) disorders, or TMD, affect the joint connecting the jawbone to the skull, causing pain, clicking, or limited jaw movement. Symptoms often include headaches, ear pain, or difficulty chewing. Depending on the severity, treatments range from lifestyle changes and physical therapy to appliances or surgery.

Jawbone Resorption

Jawbone resorption is the gradual loss of bone tissue in the jaw, typically caused by tooth loss, untreated periodontal disease, or aging. This can weaken the jaw’s structure, affect facial appearance, and complicate treatments like dental implants. Bone grafting or implant-supported restorations can help prevent or reverse resorption.

Jet Black Stains

Jet black stains are extrinsic tooth discoloration caused by chromogenic bacteria, often seen in children with poor oral hygiene. These stains are typically harmless but unsightly and can be removed with professional dental cleaning. Regular brushing and proper oral hygiene prevent recurrence.

Jaw Fracture

A jaw fracture is a break or crack in the mandible or maxilla, usually resulting from trauma such as falls, accidents, or sports injuries. Symptoms include pain, swelling, difficulty opening the mouth, and misaligned teeth. Treatment often involves surgical fixation, followed by orthodontic adjustments if necessary.

Jaw Pain

Jaw pain can stem from various causes, including bruxism (teeth grinding), TMJ disorders, infections, abscesses, or dental trauma. It may present as dull aching, sharp pain, or tenderness and often requires a dentist or specialist evaluation to identify and treat the underlying issue effectively.

Junctional Epithelium

The junctional epithelium is the specialized gum tissue that attaches to the enamel near the tooth’s base, forming a seal that protects against bacterial invasion. This tissue plays a critical role in maintaining periodontal health, and damage to it can lead to gum disease or infections.

Jaw Surgery (Orthognathic Surgery)

Jaw surgery, or orthognathic surgery, is a corrective procedure that realigns the jaws for improved function and aesthetics. It is often recommended for severe bite issues, jaw deformities, or obstructive sleep apnea. Oral surgeons perform it, restoring proper alignment and balance while enhancing facial symmetry.

Juvenile Periodontitis

Juvenile periodontitis is a rare but aggressive gum disease affecting young individuals, typically teenagers. It leads to rapid destruction of gum and bone tissue, resulting in loose teeth and potential tooth loss. Early detection and treatment with deep cleaning, antibiotics, and lifestyle changes are critical to managing the condition.

K

Keratinized Tissue

Keratinized tissue refers to the firm, thickened gum tissue surrounding the teeth, particularly along the gumline. This tissue provides essential protection and stability against physical forces and bacterial invasion, making it especially important for the success of dental implants. Healthy keratinized tissue ensures long-term implant stability and supports overall oral health.

Keratocyst

A keratocyst is a benign but aggressive cyst that develops in the jawbone, originating from dental tissue. It often grows without noticeable symptoms but can cause swelling, pain, or jawbone damage over time. Surgical removal is usually required to prevent recurrence and preserve oral function.

Knocked-Out Tooth (Avulsed Tooth)

A knocked-out tooth is a dental emergency where a tooth is completely dislodged from its socket due to trauma. Immediate action, such as placing the tooth in milk or saline and seeking professional care, can increase the chances of successful reimplantation. If the tooth cannot be saved, replacements like implants or bridges may be necessary.

Karyotype (Genetic Testing)

A karyotype is a genetic testing method that examines the number and structure of chromosomes. In dentistry, it is occasionally used to diagnose hereditary conditions affecting oral and facial structures, such as cleft palate or certain syndromes that impact tooth development or jaw alignment.

Kilovoltage Peak (kVp)

Kilovoltage peak (kVp) is a parameter in dental X-ray machines that controls the energy and penetration power of X-rays. Higher kVp settings produce clearer images of dense structures like bones, while lower settings provide greater contrast for soft tissues, ensuring accurate diagnostics for various dental conditions.

Kissing Lesions

Kissing lesions are injuries or marks that occur on adjacent teeth or oral tissues, typically caused by improper occlusion, bruxism, or trauma. These lesions can lead to enamel wear, sensitivity, or gum irritation and require intervention, such as adjusting the bite or using protective devices like mouthguards.

Chronic kidney disease or dialysis can lead to oral complications such as dry mouth, bad breath, gum disease, and delayed healing. These conditions arise from changes in saliva production, medication side effects, or systemic inflammation. Regular dental check-ups and specialized care are essential for managing these issues.

Keratocystic Odontogenic Tumor

A keratocystic odontogenic tumor is a rare but potentially aggressive growth in the jawbone that originates from dental tissue. While typically benign, it can cause significant bone destruction if untreated. Surgical removal and close monitoring are necessary to prevent recurrence and preserve jaw health.

Keratometer

A keratometer is a specialized instrument occasionally used in orthodontics or prosthodontics to measure the curvature of the jaw or teeth alignment. Accurate measurements ensure proper fitting of appliances, such as retainers or crowns, and help diagnose irregularities in jaw structure.

K-File

A K-file is a hand-held tool used in root canal therapy to clean and shape the root canal space. It removes infected pulp and debris while creating a smooth path for filling materials, ensuring effective treatment and preventing reinfection.

L

Lesion (Oral)

An oral lesion is an abnormal area of tissue in the mouth, which can appear as a sore, ulcer, or discoloration. Lesions may result from irritation, infection, or more serious conditions like oral cancer. Diagnosis often requires a biopsy or imaging to determine the cause and guide appropriate treatment, ranging from topical medications to surgical intervention.

Lingual

The term lingual refers to the surface of the teeth that faces the tongue. It is commonly used in dentistry, such as in "lingual braces," which are orthodontic devices placed on the inner side of the teeth for a discreet appearance. Lingual surfaces are also a focus during dental cleanings to ensure thorough plaque removal.

Laser Dentistry

Laser dentistry involves the use of concentrated light beams for various dental procedures, such as reshaping gums, removing cavities, or whitening teeth. This modern technique offers greater precision, minimal discomfort, and faster healing compared to traditional methods, making it a popular choice for both restorative and cosmetic treatments.

Labial Frenulum

The labial frenulum is a small fold of tissue that connects the upper or lower lip to the gums. If too thick or tight, it can cause gaps between teeth, speech difficulties, or restricted lip movement. A frenectomy, a minor surgical procedure, can correct these issues and improve oral function and aesthetics.

Local Anesthesia

Local anesthesia is a numbing medication applied to a specific area of the mouth to block pain during dental procedures like fillings, extractions, or root canals. It is administered via injection and allows patients to remain awake and comfortable while ensuring precise, pain-free treatment.

Lateral Incisor

Lateral incisors are the two teeth located next to the central incisors in both the upper and lower jaws. These teeth are crucial for cutting food and maintaining the symmetry and aesthetics of the smile. Missing or misaligned lateral incisors often require orthodontic or cosmetic treatments to restore balance.

Luxation

Luxation is the displacement of a tooth from its normal position, typically caused by trauma. Depending on the severity, the tooth may be partially or completely dislodged. Treatment involves stabilizing the tooth in its socket with splints or, in severe cases, performing an extraction and considering a replacement like an implant.

Lichen Planus (Oral)

Oral lichen planus is a chronic inflammatory condition affecting the soft tissues of the mouth, often appearing as white, lacy patches or painful red sores. The exact cause is unknown, but it may be linked to immune system dysfunction. Management includes medications to reduce symptoms and regular monitoring to prevent complications.

Laughing Gas (Nitrous Oxide)

Laughing gas, or nitrous oxide, is a mild sedative used during dental procedures to help patients relax and reduce anxiety. Administered through a mask, it takes effect quickly and wears off just as fast, allowing patients to remain conscious and calm throughout their treatment.

Laminate Veneers

Laminate veneers are thin shells made from porcelain or composite resin that are bonded to the front surface of teeth. They are used to enhance appearance by correcting discoloration, chips, gaps, or misalignment. Veneers provide a durable and natural-looking solution for a more confident smile.

M

Malocclusion

Malocclusion refers to the misalignment of the teeth or jaw, resulting in problems with biting, chewing, and speech, as well as affecting facial aesthetics. Common types include overbite, underbite, crossbite, and crowding. Treatment typically involves orthodontic devices like braces, clear aligners, or in severe cases, surgical intervention to realign the jaw.

Mandible

The mandible, or lower jawbone, is the only movable bone in the skull, playing a critical role in chewing, speaking, and supporting the lower teeth. It connects to the skull via the temporomandibular joint (TMJ) and is essential for mastication and maintaining facial structure. Injuries or conditions affecting the mandible often require specialized dental or surgical care.

Molars

Molars are the large, flat teeth at the back of the mouth, designed for grinding and crushing food into smaller pieces for swallowing. Adults typically have 12 molars—six in each jaw—including the third molars, or wisdom teeth, which often require removal if impacted or misaligned.

Microdontia

Microdontia is a dental condition where one or more teeth are smaller than normal, affecting both aesthetics and function. It commonly occurs with lateral incisors or third molars and can lead to gaps, improper bite alignment, or self-consciousness. Treatments include veneers, crowns, or orthodontics to restore appearance and functionality.

Mouthguard

A mouthguard is a protective device worn over the teeth to prevent injury during sports or protect against bruxism (teeth grinding). Sports mouthguards are thicker and cushion impacts, while nightguards are custom-made to prevent enamel wear and reduce jaw strain during sleep.

Mucosa (Oral Mucosa)

The oral mucosa is the soft tissue lining the inside of the mouth, including the cheeks, lips, gums, and tongue. It serves as a protective barrier and plays a role in sensation, secretion, and defense against pathogens. Conditions like ulcers, infections, or trauma can affect the mucosa and require treatment.

Maxilla

The maxilla is the upper jawbone that houses the upper teeth, forms the roof of the mouth (hard palate), and contributes to the shape of the face. It is essential for proper bite alignment, speech, and support of facial structures. The maxilla can be affected by trauma, congenital conditions, or dental issues like impacted teeth.

Mandibular Tori

Mandibular tori are benign, bony growths on the inner side of the lower jaw, typically near the tongue. They are harmless and usually painless, but in some cases, they may interfere with oral appliances like dentures or cause discomfort, necessitating surgical removal.

Marginal Gingiva

Marginal gingiva is the edge of the gum tissue surrounding the teeth, forming a protective seal against bacteria. It plays a crucial role in oral health by preventing infections and maintaining the integrity of the underlying bone and roots. Healthy marginal gingiva is firm and pink, while inflammation may signal gum disease.

Mercury-Free Fillings

Mercury-free fillings are dental restorations made from materials such as composite resin or ceramic, offering a safe and aesthetically pleasing alternative to traditional amalgam fillings. These fillings are durable, blend naturally with teeth, and are preferred by patients seeking to avoid mercury exposure.

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Nitrous Oxide (Laughing Gas)

Nitrous oxide, commonly called laughing gas, is a mild sedative used to help patients relax during dental procedures. Administered through a mask, it induces a calming effect while allowing patients to remain awake and responsive. The gas wears off quickly after the procedure, making it a safe and convenient option for managing anxiety and discomfort.

Neuromuscular Dentistry

Neuromuscular dentistry is a specialized field that focuses on the alignment of the jaw and its impact on the surrounding muscles, nerves, and joints. It addresses conditions like temporomandibular joint (TMJ) disorders, bruxism, and jaw pain, using orthotic devices, physical therapy, and bite adjustments to restore balance and alleviate symptoms.

Non-Surgical Periodontal Therapy

Non-surgical periodontal therapy includes treatments like scaling and root planning to manage gum disease without the need for surgery. These deep-cleaning procedures remove plaque and tartar from below the gum line and smooth the tooth roots, promoting gum reattachment and reducing inflammation.

Nightguard

A nightguard is a custom-made dental appliance worn during sleep to protect teeth from grinding or clenching (bruxism). It prevents enamel wear, reduces jaw strain, and alleviates associated symptoms like headaches or jaw pain. Nightguards are tailored to fit comfortably and ensure adequate protection.

Nerve Block

A nerve block is a form of local anesthesia injected near a major nerve to numb a larger area of the mouth during dental procedures, such as extractions or root canals. It provides prolonged pain relief, allowing the dentist to perform treatments without causing discomfort to the patient.

Necrosis (Pulp Necrosis)

Pulp necrosis is the death of the dental pulp, often resulting from untreated cavities, trauma, or infection. Symptoms include tooth discoloration, pain, or sensitivity. To prevent further complications, pulp necrosis requires root canal therapy to remove the dead tissue, disinfect the canal, and seal the tooth.

Nutrition and Oral Health

Nutrition plays a vital role in maintaining oral health. A balanced diet rich in calcium, vitamins, and minerals strengthens teeth and gums. Reducing sugar intake minimizes the risk of cavities, while proper hydration supports saliva production, which helps neutralize acids and wash away food particles.

Narrow-Diameter Implants (Mini Implants)

Narrow-diameter or mini implants are smaller-than-standard dental implants used for patients with insufficient jawbone density. They are ideal for stabilizing dentures and can be placed less invasively, making them a suitable option for patients unable to undergo extensive bone grafting.

Nasopalatine Canal

The nasopalatine canal is a passage in the upper jaw that contains nerves and blood vessels, extending from the nasal cavity to the palate. This structure is carefully considered during implant placement or oral surgery to avoid complications and preserve function.

Notching

Notching is forming small grooves or indentations in the enamel, often caused by aggressive brushing, grinding, or acidic foods. It can lead to sensitivity and an increased risk of decay. Preventive measures include using a soft-bristled toothbrush, adopting gentle brushing techniques, and wearing a nightguard if grinding is a factor.

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Occlusion

Occlusion refers to the alignment and contact between the upper and lower teeth when the mouth is closed. Proper occlusion ensures effective chewing, clear speech, and prevents issues such as jaw pain, uneven tooth wear, and temporomandibular joint (TMJ) disorders. Misaligned occlusion, or malocclusion, may require orthodontic or restorative treatment to correct.

Orthodontics

Orthodontics is a dental specialty focused on diagnosing and treating misaligned teeth and jaws. Common treatments include braces, clear aligners like Invisalign, and retainers, all of which aim to improve bite alignment, aesthetics, and oral function. Orthodontic care can benefit patients of all ages, enhancing both appearance and long-term dental health.

Onlay

An onlay is a custom-made dental restoration used to repair large cavities or fractures that extend to the cusps of a tooth. Made from materials like porcelain, gold, or composite resin, onlays are bonded to the tooth to restore its structure, functionality, and aesthetics while preserving as much natural tooth as possible.

Oral Cancer

Oral cancer is a potentially life-threatening condition that affects the mouth, tongue, throat, or lips. Common signs include persistent sores, lumps, or discoloration. Early detection through routine screenings and biopsies is crucial for effective treatment, which may involve surgery, radiation, or chemotherapy.

Overbite

An overbite is a type of malocclusion where the upper teeth excessively overlap the lower teeth. While slight overbites are normal, severe cases can cause jaw pain, speech difficulties, and uneven tooth wear. Orthodontic treatments like braces, aligners, or jaw surgery are often needed to correct the condition.

Oral Hygiene

Oral hygiene encompasses daily practices such as brushing twice a day, flossing, and regular dental visits to maintain healthy teeth and gums. Good oral hygiene helps prevent cavities, gum disease, and bad breath while contributing to overall health by reducing the risk of systemic conditions like heart disease.

Osteonecrosis of the Jaw (ONJ)

Osteonecrosis of the jaw is a serious condition where jawbone tissue dies due to poor blood supply. It is often linked to certain medications like bisphosphonates or cancer treatments involving radiation therapy. Symptoms include pain, swelling, and exposed bone, requiring specialized care such as antibiotics, debridement, or surgery.

Oral Pathology

Oral pathology involves the study and diagnosis of diseases affecting the mouth, including infections, benign and malignant tumors, autoimmune conditions, and developmental abnormalities. Oral pathologists play a key role in identifying underlying causes and guiding appropriate treatment to manage these conditions.

Overdenture

An overdenture is a removable denture designed to fit over retained natural teeth or dental implants for added stability and support. By preserving some tooth or implant structure, overdentures improve comfort, functionality, and bone retention compared to traditional dentures.

Osteoplasty

Osteoplasty is a surgical procedure used to reshape or remove bone in the jaw. It is often performed to create a suitable foundation for dentures, implants, or other restorative treatments, ensuring a stable and aesthetic result. Osteoplasty may also be used to correct bone deformities or manage periodontal conditions.

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Plaque

Plaque is a sticky, colorless film of bacteria that constantly forms on teeth. It develops when bacteria mix with food particles and saliva, creating acids that attack enamel. If not removed through brushing and flossing, plaque can harden into tartar, leading to cavities, gum disease, and bad breath. Daily oral hygiene and regular dental cleanings are essential to prevent plaque buildup.

Periodontitis

Periodontitis is an advanced stage of gum disease that results from untreated gingivitis. It damages the soft tissues and bone supporting the teeth, leading to gum recession, loose teeth, and eventual tooth loss. Symptoms include red, swollen gums, bad breath, and deep pockets between teeth and gums. Treatment involves deep cleaning, medications, and sometimes surgery to stop progression and restore oral health.

Pulp

The pulp is the innermost part of a tooth, containing nerves, blood vessels, and connective tissue. It plays a vital role in tooth development and sensation. However, it can become inflamed or infected due to deep decay, trauma, or cracks, leading to severe pain and sensitivity. Root canal therapy is often required to remove the damaged pulp and save the tooth.

Prophylaxis (Dental Cleaning)

Prophylaxis, or professional dental cleaning, is a preventive procedure aimed at maintaining oral health. It involves removing plaque, tartar, and surface stains from teeth, focusing on areas that are difficult to clean with regular brushing and flossing. This procedure helps prevent cavities, gum disease, and bad breath, ensuring a healthy and clean smile.

Partial Denture

A partial denture is a removable dental appliance used to replace one or several missing teeth. It is secured to adjacent natural teeth with metal or acrylic clasps, restoring chewing function, speech clarity, and smile aesthetics. Partial dentures are custom-made for comfort and can be removed for cleaning and maintenance.

Prosthodontics

Prosthodontics is a dental specialty dedicated to restoring and replacing teeth. Prosthodontists use advanced techniques to create crowns, bridges, dentures, and implants, addressing both functional and cosmetic concerns. They focus on complex cases involving extensive tooth loss, jaw issues, or facial deformities, improving patients' oral health and quality of life.

Panoramic X-Ray

A panoramic X-ray provides a wide, comprehensive view of the entire mouth, including teeth, jaws, and surrounding structures. It is commonly used to diagnose impacted teeth, jaw abnormalities, and bone loss. This imaging tool aids in treatment planning for procedures such as extractions, orthodontics, and implants.

Periapical Abscess

A periapical abscess is a painful infection at the tip of a tooth’s root, often caused by untreated cavities or trauma. Symptoms include severe toothache, swelling, and sensitivity. Treatment typically involves draining the abscess, performing root canal therapy to clean and seal the tooth, or extracting the tooth if necessary.

Porcelain Veneers

Porcelain veneers are thin, custom-made shells designed to cover the front surfaces of teeth. They improve the appearance of teeth by addressing issues like discoloration, chips, gaps, or misalignment. Veneers are durable, stain-resistant, and provide a natural, aesthetically pleasing result.

Pocket Depth

Pocket depth refers to the space between the tooth and the surrounding gum tissue, measured during a periodontal examination. Shallow pockets are a sign of healthy gums, while deeper pockets often indicate gum disease. Regular cleanings and oral hygiene help maintain healthy pocket depths and prevent further progression of periodontal issues.

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Quadrant Dentistry

Quadrant dentistry involves focusing on one section, or quadrant, of the mouth at a time during dental treatments for convenience and efficiency. The mouth is divided into four quadrants—upper right, upper left, lower right, and lower left—and treatments like cleanings, fillings, or extractions are completed in one quadrant per visit. This approach minimizes discomfort and reduces overall appointment time.

Quartz-Tungsten-Halogen Light

Quartz-tungsten-halogen lights are specialized lamps used in dentistry to cure materials like composite resins during restorative procedures. These lights emit consistent, high-intensity light that hardens dental materials quickly and effectively, ensuring strong and durable restorations. They are widely used in modern dental practices for their reliability.

Quick Braces

Quick braces are orthodontic treatments designed to straighten teeth in a shorter timeframe compared to traditional braces. They often use advanced technology, such as self-ligating brackets or clear aligners, to apply precise and efficient pressure. Quick braces are ideal for patients seeking faster results while maintaining effective alignment.

Qualitative Bite Assessment

A qualitative bite assessment evaluates how teeth come together, identifying issues like malocclusion, uneven contact, or jaw misalignment. This assessment is crucial for diagnosing bite problems that can lead to discomfort, jaw pain, or excessive tooth wear. Dentists use it to plan orthodontic or restorative treatments for improved function and aesthetics.

Quintessential Oral Health

Quintessential oral health refers to achieving and maintaining optimal dental hygiene and care for overall well-being. This involves daily practices like brushing, flossing, and regular dental check-ups, as well as addressing issues like cavities or gum disease promptly. A healthy mouth contributes to confidence, effective chewing, and overall health.

Quiescent Periodontal Disease

Quiescent periodontal disease describes a stable phase of gum disease where the condition is not actively progressing. Although symptoms like inflammation or bone loss may be controlled, ongoing maintenance through regular cleanings and good oral hygiene is essential to prevent relapse or further damage.

Quirks of Tooth Eruption

Tooth eruption quirks are variations in the timing or sequence of how teeth emerge, commonly seen in children. Factors such as genetics, nutrition, or developmental issues can cause early, delayed, or misaligned eruption. Regular dental check-ups ensure proper monitoring and intervention if needed to guide teeth into the correct position..

Quick Release Bonding Brackets

Quick release bonding brackets are orthodontic brackets designed for easier removal during treatment adjustments or at the end of the process. These brackets minimize discomfort and simplify the removal process while maintaining effective teeth alignment throughout orthodontic care.

Quality Assurance in Dentistry

Quality assurance in dentistry involves implementing protocols to ensure that dental procedures meet the highest standards of care, safety, and efficiency. This includes using sterilized equipment, following evidence-based practices, and prioritizing patient comfort and satisfaction, contributing to successful outcomes and trust in the practice.

Quadrant Scaling

Cleaning one section of the mouth during deep cleaning procedures for patients with periodontal disease.

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Root Canal Therapy

Root canal therapy is a dental procedure used to save a tooth with infected or damaged pulp. The process involves removing the diseased pulp, thoroughly cleaning and disinfecting the root canals, and sealing them with a biocompatible material to prevent reinfection. Often completed with a crown for added strength, root canal therapy eliminates pain and preserves the natural tooth.

Radiograph (Dental X-Ray)

A dental radiograph, or X-ray, is an imaging tool that helps diagnose issues like cavities, bone loss, impacted teeth, or infections that are not visible during a clinical exam. These images provide a detailed view of the teeth, roots, and surrounding structures, aiding in accurate treatment planning for procedures like fillings, root canals, or implants.

Resorption (Tooth or Bone)

Resorption refers to the gradual loss of tooth structure or bone, often caused by trauma, infection, or pressure from orthodontic treatment. Tooth resorption may affect the root or crown, while bone resorption typically follows tooth loss, weakening the jaw and complicating restorations like implants. Early detection and intervention are critical to manage this condition.

Retention (Orthodontic)

Retention is the post-treatment phase in orthodontics, where retainers are used to maintain the new position of teeth after braces or aligners are removed. Retainers prevent teeth from shifting back to their original alignment, ensuring long-term results. This phase is essential for stabilizing the bite and preserving the benefits of orthodontic treatment.

Removable Denture

A removable denture is a prosthetic device designed to replace missing teeth, restoring functionality and aesthetics. It can be taken out by the patient for cleaning or comfort and is available in full or partial forms. While a cost-effective solution, dentures may require adjustments over time to maintain a proper fit.

Recession (Gum)

Gum recession occurs when gum tissue pulls back, exposing the tooth roots and creating gaps that are vulnerable to plaque buildup. This condition can result from aggressive brushing, gum disease, or bruxism and often leads to sensitivity and an increased risk of decay. Treatments include deep cleanings, gum grafts, and changes in oral care habits.

Resin-Based Fillings

Resin-based fillings are tooth-colored restorations made from composite resin, ideal for repairing cavities or improving the appearance of teeth. These fillings blend seamlessly with natural enamel, offering an aesthetically pleasing and durable alternative to traditional amalgam fillings. They are commonly used in both front and back teeth.

Reimplantation (Tooth)

Reimplantation is the process of reinserting a tooth into its socket after it has been knocked out due to trauma. The tooth must be handled carefully, kept moist (preferably in milk or saline), and reinserted as soon as possible by a dentist. Splinting is often required to stabilize the tooth during the healing process.

Remineralization

Remineralization is the natural repair process of tooth enamel, where minerals like calcium and phosphate are redeposited to strengthen the tooth. This process can reverse early signs of decay and is supported by fluoride treatments, a healthy diet, and good oral hygiene practices.

Reconstruction (Full-Mouth)

Full-mouth reconstruction is a comprehensive treatment plan designed to restore all teeth, gums, and oral structures. It often combines multiple procedures, such as crowns, bridges, implants, and periodontal therapy, to address functional and aesthetic concerns. This approach is tailored to the patient’s specific needs, improving oral health and overall quality of life.

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Scaling and Root Planing

Scaling and root planing is a deep cleaning procedure aimed at treating gum disease by removing plaque and tartar from below the gum line. Scaling eliminates deposits on the teeth, while root planing smooths the tooth roots to prevent bacteria from reattaching. This treatment helps reduce inflammation, promotes gum reattachment, and prevents the progression of periodontal disease.

Sealants

Dental sealants are thin, protective coatings applied to the chewing surfaces of molars and premolars to prevent cavities. They fill in the deep grooves and pits where plaque and food particles often accumulate, making these areas easier to clean. Sealants are especially effective for children and teenagers, providing long-term cavity prevention.

Sinus Lift

A sinus lift is a surgical procedure performed to increase bone height in the upper jaw by lifting the sinus membrane and placing bone graft material beneath it. This procedure is often necessary for patients with insufficient bone in the upper jaw, ensuring a stable foundation for dental implants. Recovery is typically straightforward, with long-term benefits for oral function and aesthetics.

Smile Design

Smile design is a personalized cosmetic dentistry approach aimed at creating a balanced, attractive smile. It involves evaluating factors like tooth shape, alignment, color, and gum line, then using treatments such as veneers, whitening, bonding, or orthodontics to enhance appearance. The goal is to achieve a smile that harmonizes with the patient’s facial features.

Sensitivity (Tooth)

Tooth sensitivity is a common condition characterized by pain or discomfort when teeth are exposed to hot, cold, sweet, or acidic stimuli. It occurs when enamel wears down or gums recede, exposing the dentin underneath. Treatment options include desensitizing toothpaste, fluoride applications, and dental restorations to protect the exposed areas.

Soft Tissue Graft

A soft tissue graft is a surgical procedure used to treat gum recession by transplanting tissue, typically from the roof of the mouth, to the affected area. This procedure helps cover exposed roots, reduce sensitivity, and improve gum health. It also enhances the appearance of the smile and prevents further gum loss.

Splinting (Dental)

Dental splinting is a technique used to stabilize loose or mobile teeth caused by injury, gum disease, or bone loss. Teeth are bonded together using a special material or attached to a dental splint, creating a supportive structure. This allows the teeth to heal and regain stability while preventing further damage.

Stomatitis

Stomatitis refers to inflammation of the mouth, which can affect the gums, cheeks, tongue, or roof of the mouth. It may result from infections, irritants, or allergies and can cause pain, redness, and difficulty eating or speaking. Treatment involves addressing the underlying cause, along with soothing the affected areas.

Sutures

Sutures are stitches used to close wounds or surgical incisions in the mouth, often following procedures like extractions, implants, or gum grafts. They aid in healing by holding tissues together, protecting the area from infection, and promoting faster recovery. Sutures may be dissolvable or require removal after healing.

Supernumerary Teeth

Supernumerary teeth are extra teeth that develop in addition to the normal number, often appearing in the upper front jaw or near molars. They may cause crowding, misalignment, or delayed eruption of permanent teeth. Treatment typically involves extraction, especially if the extra teeth interfere with dental function or aesthetics.

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Tartar (Calculus)

Tartar, also known as calculus, is hardened plaque that forms on teeth when plaque is not removed promptly through regular brushing and flossing. Unlike plaque, tartar cannot be removed at home and requires professional cleaning by a dentist or dental hygienist. Tartar buildup can lead to gum inflammation, cavities, and more severe periodontal disease if left untreated.

Temporomandibular Joint (TMJ)

The temporomandibular joint (TMJ) connects the jawbone to the skull, enabling essential movements like chewing, speaking, and yawning. This joint functions like a sliding hinge, allowing smooth motion of the jaw. Disorders affecting the TMJ can cause pain, stiffness, clicking, or difficulty in jaw movement, often requiring treatment such as physical therapy, bite guards, or surgery.

Tooth Extraction

Tooth extraction involves the removal of a tooth that cannot be preserved due to severe decay, trauma, infection, or overcrowding. The procedure is typically performed under local anesthesia to ensure comfort. After extraction, dentists may recommend restorative options like implants or bridges to maintain oral health and functionality.

TMD (Temporomandibular Disorder)

Temporomandibular disorder (TMD) is a condition that affects the jaw joint (TMJ) and surrounding muscles. It can cause symptoms such as jaw pain, headaches, clicking or popping sounds, and difficulty opening or closing the mouth. Treatment may involve lifestyle changes, bite adjustments, physical therapy, or appliances like nightguards to relieve discomfort and restore function.

Tooth Whitening

Tooth whitening is a cosmetic dental procedure designed to lighten the color of teeth, removing stains caused by coffee, tea, smoking, or aging. Professional whitening methods include the use of bleaching agents or advanced laser treatments. This procedure is safe and effective, enhancing the brightness of a smile and boosting confidence.

Tongue Tie (Ankyloglossia)

Tongue tie, or ankyloglossia, is a condition where the tongue’s range of motion is restricted due to an unusually short or thick frenulum (the tissue connecting the tongue to the floor of the mouth). This can affect speech, eating, or breastfeeding in infants. A simple surgical procedure called a frenectomy is often performed to correct the issue.

Titanium Implant

A titanium implant is a durable, biocompatible device surgically placed into the jawbone to replace the root of a missing tooth. Over time, the implant integrates with the bone, creating a strong foundation for crowns, bridges, or dentures. Titanium is widely used due to its strength, longevity, and compatibility with human tissue.

Temporary Crown

A temporary crown is a short-term dental restoration placed over a tooth while waiting for the fabrication of a permanent crown. Made from acrylic or composite material, it protects the tooth, restores function, and maintains aesthetics during the interim period. Temporary crowns are removed once the final restoration is ready.

Trauma (Dental)

Dental trauma refers to injuries to the teeth, gums, or jaw caused by accidents, sports activities, or falls. Common issues include chipped or fractured teeth, dislodged teeth, and soft tissue injuries. Immediate emergency care is often required to minimize damage and preserve oral health.

Translucency (Tooth)

Tooth translucency refers to the natural ability of enamel to allow some light to pass through it, giving teeth a luminous, lifelike appearance. Translucency is most noticeable near the edges of the teeth and contributes to their overall aesthetic. However, excessive translucency can indicate enamel erosion or other dental issues.

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Ulcer (Oral)

An oral ulcer is a painful sore that develops inside the mouth, commonly caused by irritation from sharp teeth, ill-fitting dentures, or accidental biting. Other triggers include infections, vitamin deficiencies, or systemic conditions like autoimmune diseases. Symptoms include redness, swelling, and discomfort, especially while eating or speaking. Treatment focuses on managing pain, identifying the underlying cause, and promoting healing.

Ultrasonic Scaler

An ultrasonic scaler is a dental tool that uses high-frequency vibrations to effectively remove tartar, plaque, and stains from teeth. It sprays a mist of water to cool the instrument and flush away debris. This tool is widely used during professional cleanings, offering a more efficient and comfortable experience compared to manual scaling.

Underbite

An underbite is a type of malocclusion where the lower teeth protrude in front of the upper teeth, often due to genetics, jaw misalignment, or childhood habits like thumb-sucking. This condition can lead to difficulties with chewing, speech, and jaw strain. Treatment options include braces, aligners, or corrective jaw surgery for severe cases.

Unerupted Tooth

An unerupted tooth is one that has not emerged through the gum line, which is normal in developing children or for wisdom teeth in adults. If a tooth remains unerupted due to insufficient space or obstruction, it may require monitoring or surgical removal, particularly to prevent complications like infections or misalignment.

UV Light Whitening

UV light whitening is a cosmetic procedure that uses ultraviolet light to activate a bleaching agent applied to the teeth, accelerating the whitening process. This method offers quick and noticeable results, often completed in a single dental visit. Protective measures are taken to shield gums and soft tissues from the light and bleaching agent.

Upper Arch

The upper arch refers to the set of teeth located in the upper jaw, including incisors, canines, premolars, and molars. This arch plays a critical role in biting, chewing, and forming the overall appearance of the smile. Proper alignment of the upper arch is essential for effective oral function and aesthetics.

Universal Numbering System

The Universal Numbering System is a widely used dental notation method in the U.S. to identify teeth. Teeth are numbered from 1 to 32, starting with the upper right third molar and ending with the lower right third molar. This system simplifies communication among dental professionals and ensures accurate record-keeping.

U-shaped Retainer

A U-shaped retainer is a custom orthodontic appliance designed to maintain the alignment of teeth after braces or aligners are removed. Made from clear plastic or wire, it helps prevent teeth from shifting back to their original position, ensuring long-term results. Retainers may need to be worn continuously at first and then transitioned to nighttime use.

Ulcerative Gingivitis

Ulcerative gingivitis, also known as necrotizing ulcerative gingivitis (NUG), is a severe gum infection characterized by painful, bleeding gums and ulcerations. It is often caused by poor oral hygiene, stress, or compromised immunity. Immediate treatment includes professional cleaning, antibiotics, and improved oral hygiene to prevent further damage.

H3: An uneven bite occurs when the upper and lower teeth do not align properly, leading to difficulties in chewing, jaw discomfort, and uneven wear on teeth. This condition can result from genetics, trauma, or orthodontic issues. Treatment options include braces, aligners, or dental restorations to correct alignment and restore balance.

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Veneers

Veneers are thin, custom-made shells crafted from porcelain or composite resin that are bonded to the front surfaces of teeth. They are used to improve the appearance of teeth by covering imperfections such as chips, gaps, discoloration, or slight misalignment. Veneers provide a durable, stain-resistant solution that enhances both the aesthetics and confidence of a patient’s smile.

Vertical Dimension

Vertical dimension refers to the space between the upper and lower jaws when the teeth are in contact, playing a crucial role in proper bite alignment and facial structure. An incorrect vertical dimension can result in difficulties with chewing, speech, or even jaw pain. Restorative or orthodontic treatments can help adjust this measurement to restore functionality and aesthetics.

Vitality Test

A vitality test is a diagnostic procedure used to evaluate the health of a tooth's pulp. By applying stimuli such as cold, heat, or electric currents, the dentist assesses whether the pulp is alive and responsive. A lack of response may indicate pulp damage or necrosis, often requiring root canal therapy or extraction.

V-shaped Tooth Wear

V-shaped tooth wear refers to enamel loss at the gum line, often caused by aggressive brushing with hard bristles or improper technique. This condition can lead to tooth sensitivity and an increased risk of decay. Treatment may include desensitizing agents, bonding, or adjustments in oral hygiene habits to prevent further damage.

Venous Plexus (Oral)

The oral venous plexus is a network of interconnected veins in the mouth that plays a key role in blood circulation. These veins are important considerations during oral surgeries or extractions to minimize bleeding and ensure safe, efficient procedures.

Vestibule (Oral)

The oral vestibule is the space between the inner cheeks and gums where many oral hygiene practices, like brushing and flossing, are performed. It provides access to the outer surfaces of teeth and is a critical area for maintaining oral cleanliness to prevent plaque buildup and gum disease.

Vertical Root Fracture

A vertical root fracture is a severe crack that runs along the root of a tooth, often caused by trauma or excessive pressure during dental procedures. Symptoms may include pain, swelling, or infection, and treatment typically involves extraction or endodontic surgery if the tooth cannot be saved.

Virtual Smile Design

Virtual smile design uses advanced digital technology to create a virtual preview of a patient’s potential new smile. This tool allows patients to visualize the outcome of cosmetic procedures, such as veneers or whitening, ensuring they are satisfied with the planned treatment before it begins.

Vital Tooth

A vital tooth is one with living, healthy pulp tissue capable of responding to external stimuli like temperature or pressure. Maintaining the vitality of a tooth is a priority in restorative treatments, as it preserves the natural structure and function of the tooth.

Vacuum-Formed Retainer

A vacuum-formed retainer is a clear, plastic orthodontic appliance made using a mold of the patient’s teeth. It is designed to maintain tooth alignment after braces or aligners are removed. These retainers are lightweight, nearly invisible, and easy to wear, providing an effective solution for long-term retention.

W

Wisdom Teeth

Wisdom teeth are the third molars located at the back of the mouth, typically erupting between the ages of 17 and 25. While some people have sufficient space for their wisdom teeth to emerge properly, others experience issues like impaction, overcrowding, or misalignment. These problems often require extraction to prevent pain, infection, or damage to adjacent teeth.

White Spot Lesions

White spot lesions are early signs of enamel demineralization, appearing as chalky, white areas on the teeth. They are often caused by poor oral hygiene, high sugar intake, or prolonged use of braces. While these lesions can sometimes progress to cavities, early intervention with fluoride treatments or remineralization techniques can reverse the damage and restore enamel health.

Water Flosser

A water flosser is a dental device that uses a pressurized stream of water to clean between teeth and along the gum line. It is particularly beneficial for people with braces, implants, or bridges, as it effectively removes plaque and food particles from hard-to-reach areas. Water flossers are a gentle alternative for individuals who find traditional flossing difficult.

Worn Dentition

Worn dentition refers to the gradual loss of tooth structure due to grinding (bruxism), acid erosion from diet or reflux, or natural aging. This condition can lead to sensitivity, changes in bite, and aesthetic concerns. Treatment options include veneers, crowns, or bite guards to protect teeth and restore function and appearance.

Wedge (Dental)

A dental wedge is a small device, often made of wood or plastic, used in restorative dentistry to create space between teeth during procedures like fillings or crowns. It ensures proper placement and contouring of the restoration, preventing gaps that could lead to food impaction or decay.

White Fillings

White fillings are made from composite resin and are used to repair cavities, chips, or fractures in teeth. Unlike metal amalgam fillings, white fillings blend seamlessly with the natural color of teeth, providing a durable and aesthetically pleasing restoration. They are commonly used for both front and back teeth.

Wax-Up (Dental)

A dental wax-up is a detailed model created using dental wax to simulate the results of cosmetic or restorative treatments. It serves as a visual guide for both the dentist and the patient, allowing them to preview the anticipated outcome of procedures like veneers, crowns, or full-mouth restorations before beginning treatment.

Wicking (Dry Socket)

Wicking is a technique used to treat dry sockets, a painful condition that can occur after tooth extraction when the protective blood clot is lost. This involves placing medicated dressings into the socket to absorb excess fluid, reduce inflammation, and promote healing. It provides relief and encourages tissue regeneration.

Weak Enamel

Weak enamel refers to a condition where the enamel is thin, demineralized, or worn, leaving teeth more susceptible to sensitivity and cavities. Common causes include poor diet, acid erosion, and genetics. Treatments such as fluoride varnishes, remineralization therapies, and protective sealants help strengthen enamel and prevent further damage.

Wooden Interdental Sticks

Wooden interdental sticks are small tools designed to clean between teeth, particularly in larger spaces where traditional floss may be less effective. Made from soft, flexible wood, these sticks gently remove plaque and debris, promoting gum health and reducing the risk of cavities in hard-to-reach areas.

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Xerostomia (Dry Mouth)

Xerostomia, or dry mouth, occurs when the salivary glands fail to produce enough saliva, leading to discomfort, difficulty swallowing, and an increased risk of cavities and gum disease. Common causes include medications, aging, and medical conditions such as Sjögren's syndrome or diabetes. Treatment involves addressing the underlying cause, staying hydrated, and using saliva substitutes or stimulants to improve moisture levels.

X-Ray (Dental)

Dental X-rays are diagnostic tools that provide detailed images of teeth, roots, and surrounding jaw structures. They help detect issues like cavities, infections, bone loss, and impacted teeth that are not visible during a regular dental exam. Modern digital X-rays reduce radiation exposure and allow for faster, more accurate diagnosis and treatment planning.

X-linked Hypophosphatemia

X-linked hypophosphatemia is a rare genetic disorder affecting phosphate levels in the body, leading to weakened bones and teeth. In dentistry, it can result in defects in tooth enamel, increasing the risk of cavities and abscesses. Management includes fluoride treatments, sealants, and addressing systemic health through medical care.

X-Guide

The X-Guide is an advanced dental navigation system used during implant surgeries to ensure precision and accuracy. It provides real-time 3D guidance, helping dentists position implants with minimal margin of error. This technology improves surgical outcomes and reduces recovery times for patients.

Xylitol

Xylitol is a natural sugar substitute found in certain chewing gums, mints, and toothpaste. Unlike regular sugar, it does not feed cavity-causing bacteria and can help reduce plaque buildup. Xylitol also stimulates saliva production, making it particularly beneficial for individuals with dry mouth or those prone to cavities.

Xerogenic Diet

A diet that reduces saliva production, often including caffeinated or acidic drinks, which can exacerbate dry mouth.

Xanthodontia

Yellowish discoloration of teeth, often caused by genetics, aging, or excessive fluoride intake.

Xerographic Imaging

An older imaging technique used in dentistry, now largely replaced by digital radiography for better clarity and efficiency.

Xenograft (Bone Graft)

A bone grafting material derived from animals, often used in dental implant procedures to replace lost bone.

Xanthelasma

Yellowish deposits on the gums or lips, often indicative of high cholesterol levels and requiring further medical evaluation.

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Yellow Teeth

Yellow teeth are often caused by staining from foods, drinks, or tobacco, as well as aging or thinning enamel that reveals the naturally yellow dentin underneath. Poor oral hygiene can exacerbate discoloration by allowing plaque and tartar to build up. Treatments include professional whitening, veneers for severe cases, and improved brushing and flossing habits to maintain a brighter smile.

YAG Laser (Dental)

A YAG (Yttrium Aluminum Garnet) laser is a high-tech tool used in dental procedures for soft tissue treatments like gum reshaping, cavity removal, or treating periodontal pockets. It offers precision, reduces discomfort, and speeds up healing by minimizing damage to surrounding tissues. This laser is increasingly popular in modern dental practices for its efficiency and versatility.

Youth Dentistry (Pediatric Dentistry)

Youth dentistry, or pediatric dentistry, focuses on the oral health care needs of children from infancy through adolescence. Services include preventive treatments like fluoride applications, cleanings, sealants, and managing developmental concerns such as crowding or cavities. Pediatric dentists also educate children and parents on proper oral hygiene to establish lifelong healthy habits.

Y-tubules (Dentin)

Y-tubules are microscopic channels in the dentin layer of teeth that extend from the enamel to the pulp. These tubules carry stimuli like heat, cold, or pressure, making them a key factor in tooth sensitivity. Exposed dentin due to enamel erosion or gum recession can lead to discomfort, often managed with desensitizing toothpaste or protective dental treatments.

Yttria-Stabilized Zirconia (YSZ)

Yttria-stabilized zirconia (YSZ) is a durable and biocompatible material used in dental restorations like crowns, bridges, and implants. Known for its strength and natural tooth-like appearance, YSZ is resistant to fractures and wear, making it a preferred choice for long-lasting and aesthetically pleasing dental solutions.

Yellowing with Age

As people age, teeth naturally lose their brightness due to enamel thinning, which makes the underlying yellow dentin more visible. Additionally, years of exposure to staining substances like coffee, wine, or tobacco contribute to discoloration. Preventive measures and treatments such as whitening or veneers can help restore a youthful appearance.

Younger Tooth Eruption

Younger tooth eruption refers to the early appearance of teeth in children, which is often influenced by genetic factors or environmental conditions like nutrition. While early eruption is usually not a cause for concern, regular dental check-ups ensure proper alignment and monitor for potential issues such as crowding or decay.

Youth Bruxism

Youth bruxism is the grinding or clenching of teeth in children, often occurring during sleep. It may be linked to stress, misaligned teeth, or developing jaw structures. If untreated, it can lead to enamel wear, jaw pain, and headaches. Custom-made nightguards are a common solution to protect teeth and minimize damage.

Younger Bone Adaptability

Younger patients' bones have a greater capacity to adapt to orthodontic treatments, allowing teeth to move more quickly and effectively into their desired positions. This adaptability often results in shorter treatment times and more predictable outcomes, making childhood and adolescence ideal for orthodontic care.

Yolk Sac Tumors (Oral)

Yolk sac tumors are rare, benign growths that can occasionally occur in the oral cavity of children. While not typically harmful, these tumors may interfere with normal oral function or development. Surgical removal is often required, followed by monitoring to ensure no recurrence or complications.

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Zirconia Crowns

Zirconia crowns are dental restorations made from zirconium dioxide, a highly durable and biocompatible material. They are valued for their strength, resistance to wear, and natural tooth-like appearance. These crowns are suitable for both front and back teeth, providing an aesthetic solution that can withstand the pressures of chewing and grinding.

Zygomatic Implants

Zygomatic implants are specialized dental implants anchored in the cheekbone (zygoma) rather than the jawbone. They are designed for patients with severe jawbone loss who are not candidates for traditional implants. This advanced technique provides a stable foundation for dental restorations without the need for bone grafting.

Zoning (Orthodontic)

Zoning in orthodontics refers to dividing the mouth into specific sections or zones to plan and execute phased treatments. This approach allows orthodontists to focus on individual areas of the mouth sequentially, optimizing efficiency and ensuring balanced results. Zoning is often used in complex cases requiring extensive realignment.

Zinc Oxide-Eugenol Cement

Zinc oxide-eugenol cement is a material commonly used in temporary fillings, as a liner under permanent restorations, or for soothing irritated dental pulp. It has a sedative effect, reducing sensitivity and inflammation, while providing a secure yet temporary solution during treatment.

Zero-Bone Loss Protocols

Zero-bone loss protocols are advanced surgical techniques and post-operative strategies aimed at preserving bone around dental implants. These protocols include careful implant placement, use of biocompatible materials, and proper aftercare to minimize bone resorption and ensure long-term implant stability.

Z-plasty (Oral Surgery)

Z-plasty is a surgical technique used to revise scars, correct soft tissue defects, or improve tissue mobility in the oral cavity. The procedure involves creating a Z-shaped incision to reposition tissue, reducing tension and improving functionality and aesthetics in the affected area.

Zollinger-Ellison Syndrome (Oral Impact)

Zollinger-Ellison syndrome is a rare condition characterized by excessive stomach acid production, often caused by tumors in the pancreas or duodenum. This excess acid can lead to chronic acid reflux, which may result in enamel erosion, tooth sensitivity, and oral discomfort. Management typically involves medical or surgical treatment of the underlying condition.

Zinc Phosphate Cement

Zinc phosphate cement is one of the oldest dental cements used for securing crowns, bridges, and orthodontic appliances. Known for its strength and durability, it provides a reliable bond. However, newer materials have largely replaced it due to advancements in dental cement technology that offer additional benefits like ease of use and improved biocompatibility.

Zygomatic Arch

The zygomatic arch is the bony structure connecting the cheekbone to the jaw. In dentistry, it is significant in advanced procedures like zygomatic implant placement, providing an alternative anchoring site for implants in patients with severe jawbone deficiencies. It also plays a role in facial aesthetics and function.

Zenker’s Diverticulum (Oral Manifestations)

Zenker’s diverticulum is a condition involving the formation of a pouch in the throat, which can trap food and cause symptoms such as bad breath, difficulty swallowing, and oral discomfort. Though not directly dental, it can impact oral health and hygiene. Treatment often involves surgical correction to eliminate the diverticulum and associated issues.

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North York Smile Centre
5 Park Home Ave #130,
North York,
ON M2N 6L4