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Updated: Aug 24, 2026

The Trier Social Stress Test Protocol for Inducing Psychological Stress
Published on: October 19, 2011
Psychobiologic views on stress-related oral ulcers
Francesco Chiappelli1, Olivia S Cajulis
1UCLA School of Dentistry, Los Angeles, California, USA. Chiappelli@dent.ucla.edu
Abstract:
Recurrent aphthous stomatitis (RAS) and oral lichen planus (OLP), two of the most common stress-related ulcerations of the oral mucosa, have distinct etiologies, courses, and histopathologic features. In light of increased understanding of the psychobiology of stress, the authors propose that RAS and OLP fundamentally differ from the perspective of the psychobiologic response to stress. This article presents possible clinical implications.
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