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A woman presses both hands to her temples and jaw, eyes closed in discomfort, for North York Smile Centre

Toothache vs TMJ Pain: How to Tell the Difference and When to See a Dentist

Toothache vs TMJ pain is a question of source: a toothache starts in one tooth, while TMJ pain starts in the jaw joint or in the muscles that move the jaw. The overlap is real. A sore joint can make several teeth ache, and a damaged tooth can make the jaw muscle tighten around it. Sorting the two starts with where you can point, what sets the pain off, and what else is happening in the face.

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A dentist in loupes examines a patient's open mouth during a check-up, with a cup on the instrument tray, for North York Smile Centre.

Is It Safe to Rinse With Hydrogen Peroxide? Dentist-Approved Guide

A hydrogen peroxide mouthwash is reasonable for a short course when you dilute a 3% bottle to about 1% to 1.5%, keep the mix in your mouth for 30 to 60 seconds, and spit. Strength and the number of days you continue are the two limits. A mix taken straight from the cap, or a weak mix you repeat for months, is where gums and teeth start to object.

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Bleeding gums between teeth when brushing

Why Your Gums Bleed When You Brush and What It Means

Bleeding gums when you brush are inflamed. That is what the bleeding means, and it is almost never a sign that you are brushing too hard. Healthy gum tissue doesn't bleed when a soft brush passes over it, just as healthy skin doesn't bleed when you wash it. In most cases, plaque along the gumline is the cause; the condition is early gingivitis, and it can be completely reversible within one to two weeks with proper cleaning. If the bleeding persists after two weeks of genuinely good home care, the problem has moved past what brushing can fix and needs to be addressed. The distinction between those two situations is what this article is about.

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Dentist examining a patient's mouth for a cold sore or canker sore

Cold Sore or Canker Sore? How to Tell Them Apart and What to Do About Each

A canker sore is a small ulcer that forms inside your mouth, is not contagious, and is not caused by a virus, while a cold sore is a cluster of blisters that appears outside your mouth, usually on or near the lips, is very contagious, and is caused by the herpes simplex virus. Both are painful, both usually heal on their own within one to two weeks, and both are common. But because they have different causes and one can spread to other people, telling them apart changes how you treat them, how careful you need to be around others, and when it is worth having a dentist take a look.

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3D illustration of essential vitamins and minerals that support strong teeth, healthy gums, and long-term oral health

How Vitamins and Minerals Support Long-Term Oral Health

Most people associate good dental health with brushing, flossing, and regular dental visits. Those habits matter enormously, but they work best when supported by a diet that actually gives your teeth, gums, and jawbone the raw materials they need to stay strong.

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What Causes Dry Mouth at Night?

What Causes Dry Mouth at Night?

If you wake up with a dry, sticky mouth every morning, you're not alone — and it's not simply a matter of drinking more water before bed. Dry mouth at night, clinically called xerostomia, affects roughly one in five adults and tends to be worse during sleep for reasons that have nothing to do with hydration alone.

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