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Know Your Teeth - Infobites - What Are Cold Sores? -- Search By Keyword, Letter or Phrase - 1-877-2X-A-YEAR (1-877-292-9327)
Dental care and oral health information you need
from the Academy of General Dentistry

Tuesday, October 13, 2015
Know Your Teeth Academy of General Dentistry Know Your Teeth


Quick Reference

Men's Oral Health

Men: Looking for a Better Job? Start by Visiting the Dentist


Long ago, most men worked for one or two employers throughout a lifetime and many did not think about the way their overall appearance affected their professional life.

Learn what those dental words mean.

Check out how your teeth and mouth change in every stage of life.



Get dental news feeds delivered directly to your desktop! more...

What Are Cold Sores?

Chapter: Cold Sore Vs. Canker Sore

Like cold sores, canker sores also known as aphthous ulcers can be quite painful and often recur. While cold sores are caused by a virus, the formation of a canker sore may be triggered by multiple factors such as stress, food allergies or a weakened immune system. A canker sore forms in the soft tissues of your mouth and is not contagious, whereas a cold sore usually appears around the lip area outside the mouth and is highly contagious. If a cold sore appears inside the mouth, usually it appears on the non-movable parts such as the roof, rather than the tongue or soft palate.


Reviewed: January 2012