Relationship between quantitative assessments of salivary buffering capacity and ion activity product for hydroxyapatite in relation to cariogenic potential. Aust Dent J. 2008 Jun;53(2):167-71 Authors: Aiuchi H, Kitasako Y, Fukuda Y, Nakashima S, Burrow MF, Tagami J Abstract BACKGROUND: The ion activity product for hydroxyapatite (Ip(HA)) is a comprehensive parameter reflecting pH, calcium and phosphate …