Which of the following is a non-invasive proximal caries management option in MID?

• A. Full-coverage restoration
• B. Extraction
• C. Direct caries removal to dentin
• D. Proximal sealing

Answer: (C)

In minimally invasive dentistry, the goal for proximal caries is to arrest progression while preserving tooth structure. For early or non-cavitated proximal lesions, sealing the surface with a resin proximal sealant is a non-invasive approach that creates a barrier to plaque and acids, helping remineralization and preventing the lesion from advancing without removing tooth tissue. This fits the MIS emphasis on conservation and minimal intervention.

Direct caries removal to dentin involves removing decayed tissue, which is an invasive, tissue-destructive step, and full-coverage restoration or extraction likewise require more extensive preparation or removal of the tooth. Therefore, proximal sealing is the most appropriate non-invasive proximal caries management option in MID.