1. Introduction
caries
CAVITY, HYDROXYAPATITE, CARIES
Hydroxyapatite, CaThe modes of action of hydroxyapatite in the oral cavity are based on physical, biochemical, and biological principles (The use of fluoride-free hydroxyapatite toothpastes has in recent years been shown to be a clinically proven approach to caries prevention (The efficacy of hydroxyapatite-based toothpastes in preventing caries has been demonstrated in adolescents (