Periodontics · single question
Photo: thin, yellow enamel on the upper LINGUAL surfaces. Diagnosis?
Show answer and explanation
Correct answer: A. Erosion
- A. Correct. Acid (often intrinsic, e.g., reflux/vomiting) thinning of enamel on the palatal/lingual surfaces (perimylolysis) = erosion.
- B. Abrasion is mechanical wear (e.g., toothbrush) usually at the cervical/facial.
- C. Attrition is tooth-to-tooth wear on occlusal/incisal surfaces.
- D. Abfraction is cervical notching from occlusal flexure.