Which dental manifestation is commonly associated with bulimia nervosa?

• A. Teeth pitting or enamel erosion
• B. Calluses on the dorsum of the hand
• C. Parotid swelling
• D. Gingival recession

Answer: (A)

Repeated vomiting in bulimia nervosa constantly bathes the teeth in gastric acid, which erodes enamel. This shows up most clearly as smooth, shiny, cupped enamel loss on the palatal surfaces of the maxillary anterior teeth, often with increased translucency and sensitivity. Over time, exposed dentin and structural wear can occur. While other bulimia findings like calluses on the knuckles or parotid gland swelling can accompany the condition, the dental manifestation most characteristic and pathognomonic is enamel erosion from acid exposure.