How long after placement should an amalgam restoration typically be polished?

• A. Immediately
• B. 12 hours
• C. 24 hours, with light polishing possible immediately
• D. Never

Answer: (C)

Polishing an amalgam restoration is typically recommended to be done 24 hours after placement for optimal results. This time allows the amalgam to fully set and reach its final hardness, which helps ensure a smoother and more polished surface. However, light polishing can be performed immediately after placement to remove excess material and improve the initial esthetics and function of the restoration. This immediate polishing can help in contouring the restoration to better fit the occlusion and make it more comfortable for the patient.

Polishing too soon, before the amalgam has fully hardened, can lead to a compromised surface finish and potentially alter the integrity of the restoration. Conversely, waiting too long may not be as effective in achieving the desired surface smoothness and may add unnecessary wear to opposing dentition. Thus, the recommended approach balances immediate care with the need for optimal long-term performance.