The study investigated the impact of three different polishing agents (pumice, aluminum oxide paste, and diamond paste) on the staining characteristics of a provisional restorative material after immersion in chlorhexidine.
Sixty samples of bis-acryl composites were polished with these agents, and their color changes were measured and compared before and after exposure to staining.
The results showed that pumice had significantly less staining compared to aluminum oxide and diamond pastes, indicating its effectiveness as a polishing agent.