Etiology • Chronic, low-grade biting habit
Clinical Presentation • Shaggy, white, keratotic surface • Surface often appears granular to macerated • More uniform keratotic surface may develop over time if habit
continues • Most common sites are lip and buccal mucosa
Microscopic Findings • Very irregular, fimbriated surface keratin • Surface bacterial colonization • No connective tissue changes
Diagnosis • Presentation • Biopsy
Differential Diagnosis • Leukoedema • Leukoplakia • Lichen planus • Lichenoid tissue reactions
Treatment • Elimination of hyperfunction habit
Prognosis • Excellent