Bitewing for Proximal Caries — NDEB AFK MCQ
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Correct answer: C — Bitewing radiographs
Bitewing radiographs are the most reliable standard method for detecting interproximal (proximal) caries in posterior teeth. They detect lesions that are not visible clinically due to intact marginal ridges and tight contacts. Studies show bitewing radiographs detect 40-50% more proximal lesions than clinical examination alone. However, radiographs underestimate the histological depth of lesions (a lesion appearing to be in outer dentin radiographically has typically already reached middle dentin histologically). Digital radiography with image enhancement improves detection sensitivity.
Reference: White & Pharoah – Oral Radiology: Principles and Interpretation, 8th ed., 2019