Restorative & Materials · single question
A child fractures a primary maxillary central incisor; the defect involves the incisal edge and the distal proximal surface (including the incisal angle). By G.V. Black classification, this is a:
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Correct answer: B. Class IV
- A. Class III involves proximal surfaces of anteriors WITHOUT the incisal angle.
- B. Correct. Class IV = proximal surface of an anterior tooth that DOES involve the incisal angle.
- C. Class V is the gingival third of facial/lingual surfaces.
- D. Class VI involves incisal edges/cusp tips (abrasion).
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