High-performance silica-containing professional mechanical tooth-cleaning paste that effectively adsorbs pigments

Introduction

Pastes for professional mechanical tooth cleaning (PMTC) that contain abrasive ingredients can damage the surface of a tooth. A PMTC paste containing silica was recently developed as an adsorption material.

Materials and methods

We assessed the effectiveness with regard to on stain deposition of a novel PMTC paste containing high-performance silica (HPS) comprising porous ultra-fine particles. We also compared the pigment adsorption capability of HPS with that of ordinary silica.

Results

When PMTC solutions were added to hydrated lime stained with coffee or rooibos tea, a PMTC solution containing HPS was more effective with regard to stain removal than other PMTC solutions without HPS. In addition, stain-preventive effect of the PMTC paste containing HPS was also higher than that of the PMTC paste without HPS. When HPS and ordinary silica were immersed in food-coloring additives, HPS was more adasorptive than ordinary silica, especially with regard to high-molecular-weight pigments. Furthermore, HPS was significantly more adsorptive than ordinary silica 5 min after exposure to coffee and 24 h after exposure to rooibos tea (P < 0.05).

Conclusion

Our results suggest that PMTC paste containing HPS effectively adsorbs pigments and can remove staining and prevent stain deposition without polishing teeth.