Principals of Amalgam Cavity Preparation Practice Test

Beveled enamel margins are used to increase the bonding surface and create a smooth, gradual transition for composite restorations. When preparing for a bonded composite, beveling exposes more enamel prisms and provides a larger area for etching and adhesive bonding, which improves marginal seal, reduces microleakage, and helps the finish blend with the natural tooth. Since bonding to enamel is the foundation of resin-based restorations, this technique is emphasized for composite preparations. Amalgam restorations don’t rely on enamel bonding, so beveling enamel margins isn’t a standard practice there. For indirect restorations, margins are planned differently, so the enamel bevel concept isn’t the same feature. Therefore, the statement is considered true in the typical educational context.