Which size of filler particles offers the highest polishability in dental resins?

The size of filler particles significantly influences the polishability of dental resins. Micro-sized filler particles offer the highest polishability because of their small dimensions. The micro-fillers are able to fill in the spaces between the resin matrix more effectively compared to larger particles. This results in a smoother surface texture, which is essential for achieving a high level of shine when the material is polished.

In dental applications, a smoother finish not only enhances the aesthetic appeal by providing a more lifelike appearance but also reduces plaque accumulation, thereby contributing to better oral hygiene and longevity of restorations. By contrast, larger filler particles may not integrate as seamlessly into the resin matrix and can create a rougher surface that is more challenging to polish.