What polishing agent is suitable for metallic restorations inside the mouth?

Tin oxide is recognized as an effective polishing agent for metallic restorations in the mouth due to its fine particle size and ability to produce a smooth finish without causing abrasion to the metal surfaces. It is particularly valued for its ability to provide a high luster to restorations, enhancing both aesthetics and the overall smoothness, which can help in reducing plaque accumulation.

Furthermore, tin oxide is non-abrasive enough to be safe for the surfaces of restorations, ensuring that the integrity of the metallic materials is maintained. This is crucial because improper polishing agents can scratch or dull metallic restorations, leading to increased plaque retention and potential dental issues.

While other materials like calcium carbonate and alumina can be effective polishing agents in various contexts, they are typically used for different kinds of tooth surfaces or in applications that require more aggressive polishing, making them less suitable for delicate metallic restorations. Macaroon powder, although an interesting option, is not commonly recognized in dental practices for polishing metals, limiting its application in this context.