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

Abstract

IntroductionPastes 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 methodsWe 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. ResultsWhen 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). ConclusionOur results suggest that PMTC paste containing HPS effectively adsorbs pigments and can remove staining and prevent stain deposition without polishing teeth.