Etiological Factors of Recurrent Aphthous Stomatitis: A Common Perplexity

Abstract

Recurrent aphthous stomatitis (RAS) is one of the most common oral mucosal disorders. Nevertheless, while the clinical characteristics of RAS are well-defined, the precise etiology and pathogenesis of RAS remain unclear. The present article provides a detailed review of the current knowledge of various etiological factors of RAS.