What are the advantages of air abrasion?

• A. Painless, microretentive features of the preparation.
• B. Requires extensive tooth reduction.
• C. Leaves the tooth surface roughened and overheated.
• D. Causes more discomfort than conventional drilling.

Answer: (A)

Air abrasion is valued for its conservative approach and its effect on bonding. Blasting fine abrasive particles onto the tooth surface tends to remove decay and prepare enamel or dentin with minimal removal of healthy structure, often without the need for anesthesia. That gentle, nonmechanical action also tends to be comfortable for many patients, and it creates a microrough surface that enhances bonding by providing microretentive features for resin-based restorations. So the strongest takeaway is that this method is painless for many patients and produces a surface texture that improves retention of the bonding agent. The ideas that it requires extensive tooth reduction, leaves the surface overheated, or causes more discomfort than conventional drilling do not align with the typical advantages of air abrasion.