What is the prevalence of aphthous ulcers in the US?

Updated: Feb 25, 2019
  • Author: Michael C Plewa, MD; Chief Editor: Russell W Steele, MD  more...
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Although recurrent aphthous ulcers (canker sores) are commonly believed to occur in approximately 20% of the general population, a study of medical and dental students revealed a prevalence of 31-66%.

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