Journal ArticleDOI
Mechanism for fluorine inhibition of diffusion in hydroxyapatite.
TLDR
New NMR results for a mineral hydroxyapatite have been obtained which provide a detailed model of the locations of the impurity-fluoride ions in hydroxyAPatite, their influence on neighbouring hydroxyl ions, and a mechanism by which small amounts of fluorine can strongly inhibit diffusion.Abstract:
NEW NMR results for a mineral hydroxyapatite have been obtained which, in combination with recent precision X-ray crystallographic studies, provide a detailed model of the locations of the impurity-fluoride ions in hydroxyapatite, their influence on neighbouring hydroxyl ions, and a mechanism by which small amounts of fluorine can strongly inhibit diffusion.read more
Citations
More filters
Journal ArticleDOI
Some physico-chemical aspects of hydroxylapatite
T. S. B. Narasaraju,D. E. Phebe +1 more
TL;DR: A review of hydroxylapatite, a biological material of extensive contemporary inter-disciplinary research, can be found in this article, where the authors provide information on preparation techniques, characterization, isomorphous substitutions and solubility equilibria.
Journal ArticleDOI
Hydroxyapatite and their use as coatings in dental implants: a review.
Joo L. Ong,Daniel C. N. Chan +1 more
TL;DR: It is also important that the clinical investigators be well versed with the materials characterization needed for HA-coated implants, the problems associated with the current HA coatings, and the indications for use.
Journal ArticleDOI
Fluoride: Benefits And Risks of Exposure
TL;DR: This summarized current knowledge of the benefits and risks of fluoride ingestion indicates that fluoride can reduce the incidence of dental caries and that fluoridation of drinking water can provide such protection.
Journal ArticleDOI
Implications of Atomic Substitutions and Other Structural Details in Apatites
TL;DR: The physical and chemical properties of interest to us are affected not only by the kinds and amounts of each type of atom present, but also by how the atoms pack together to build up the crystallites and, hence, the bulk material.
Journal ArticleDOI
Morphogenesis and Structure of Human Teeth in Relation to Biomimetically Grown Fluorapatite−Gelatine Composites
TL;DR: In this paper, the structure and development of human teeth are compared to similar composite systems that develop in vitro under biomimetic conditions without the controlling influence of cells, and the results show that composite materials are impressive composite materials because of their complex organization and perfect adaptation to the demands of living organisms.
References
More filters
Journal ArticleDOI
Atomic-scale bases for several properties of apatites
R.A. Young,J.C. Elliott +1 more
TL;DR: It is suggested that the lack of a local polar moment associated with Ca and F in fluorap atite may contribute to its chemical stability over hydroxyapatite (and, presumably, chlorapatITE) where such polar moments do occur.
Journal ArticleDOI
Nuclear magnetic resonance line shape of fluorine in apatite
W van der Lugt,W.J. Caspers +1 more
TL;DR: In this paper, the F nuclear magnetic resonance line in apatite (Ca5F(PO4)3) is interpreted in terms of a model in which only interactions within linear chains of F nuclei are taken into account.
Related Papers (5)
Significant precision in crystal structural details. Holly Springs hydroxyapatite
K. Sudarsanan,R. A. Young +1 more