Characterization of Phosphorus Species in Human Dentin by Solid-State NMR.

ABSTRACT: The rat has been considered as an appropriate animal model for the study of the mineralization process in humans. In this work, we found that the phosphorus species in human dentin characterized by solid-state NMR spectroscopy consist mainly of orthophosphate and hydrogen phosphate. Some orthophosphates are found in a disordered phase, where the phosphate ions are hydrogen-bonded to structural water, some present a stoichiometric apatite structure, and some a hydroxyl-depleted apatite structure. The results of this study are largely the same as those previously obtained for rat dentin. However, the relative amounts of the various phosphorus species in human and rat dentin are dramatically different. In particular, stoichiometric apatite is more abundant in human dentin than in rat dentin,

SUBMITTER: Tsai YL 

PROVIDER: S-EPMC6983145 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature