In MID terminology, what does PRR stand for?

• A. Proximal Restoration and Refinement
• B. Partial Resin Replacement
• C. Preventive Resin Restoration
• D. Pulp Reconstruction and Restoration

Answer: (C)

In minimally invasive dentistry, this term describes a technique that combines preventive care with a small, conservative restoration. Preventive Resin Restoration involves sealing pits and fissures or lightly treating early approximal caries with a resin material, after removing only the compromised enamel (and a limited amount of dentin if necessary). The goal is to arrest lesion progression while preserving as much healthy tooth structure as possible, often in one visit and with a tooth-friendly, durable seal.

That’s why the term Preventive Resin Restoration is the best fit: it captures the idea of preventing further decay by sealing the tooth surface while restoring function with a resin, rather than more extensive drilling or removing large amounts of dentin. The other proposed terms are not standard MID terminology and don’t reflect this combined preventive-and-restorative approach.