Etiology • Accidental/functional or factitious injury
Clinical Presentation • Tender to very painful • Ulcer with yellow, fibrinous center and well-defined margins • Inflammatory/erythematous periphery
Microscopic Findings • Fibrinous surface • Mixed inflammatory infiltrate • Granulation tissue at base of lesion
Diagnosis • History of trauma • Evaluation for ill-fitting dental prosthesis or orthodontic
appliance • Nonspecific histologic findings
Clinical Presentation • Tender to very painful • Ulcer with yellow, fibrinous center and well-defined margins • Inflammatory/erythematous periphery
Microscopic Findings • Fibrinous surface • Mixed inflammatory infiltrate • Granulation tissue at base of lesion
Diagnosis • History of trauma • Evaluation for ill-fitting dental prosthesis or orthodontic
appliance • Nonspecific histologic findings
Differential Diagnosis • Aphthous ulcer • Neutropenia-related ulcer • Factitial ulcer • Squamous cell carcinoma • Primary syphilis (chancre)
Treatment • None except elimination of cause • Healing within 10 days
Prognosis • Excellent