Study: Butler prophy less abrasive
A recent University of Nebraska study has found that Butler Paste-Free Prophy is less abrasive on composite resin and enamel, and provides a higher-gloss finish than the paste products tested, according to Sunstar Americas, the makers of the paste. The study also found that: Butler Paste-Free Prophy is safer for polishing cosmetic restorations than traditional prophy paste. Butler Paste-Free Prophy maintains the original finish and gloss on porcelain (does not

