Which material is commonly used to seal root caries in MID for older adults?

• A. Amalgam
• B. Glass Ionomer Cement (GIC) and resin
• C. Gold
• D. Composite resin with bonding only

Answer: (B)

The material chosen reflects the goal of arresting root caries with a durable, moisture-tolerant seal that also helps prevent further decay. In older adults, exposed root surfaces are common, and a minimally invasive approach aims to seal the lesion rather than aggressively remove dentin. Glass ionomer cement is ideal for this initial seal because it bonds chemically to dentin, tolerates a somewhat moist field, and continuously releases fluoride to aid remineralization and inhibit secondary decay. Pairing it with resin then provides a stronger, longer-lasting marginal seal and improves wear resistance and aesthetics where needed. This combination leverages the fluoride protection of GIC with the superior sealing and durability of resin, making it the most appropriate choice for sealing root caries in minimally invasive dentistry for older adults. Amalgam and gold are less suited to a sealing approach in this context, and composite resin with bonding alone lacks the fluoride benefit that helps protect exposed root surfaces.