What are the common history findings in recurrent aphthous stomatitis (RAS)?

Updated: May 11, 2020
  • Author: Jaisri R Thoppay, DDS, MBA, MS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Most patients with RAS appear to be otherwise well, but a minority have etiologic/precipitating factors that can be identified by the history. These factors may include the following:

  • Dentifrices containing sodium lauryl sulfate

  • Trauma

  • Stress

  • Cessation of smoking

  • Menstrual cycle association

  • Food allergy

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