What causes 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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Answer

The etiology of RAS is still unknown; the condition may in fact manifest from a group of disorders of quite different etiologies rather than from a single entity. [3]


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