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Science 17 March 1967:
Vol. 155. no. 3768, pp. 1409 - 1411
DOI: 10.1126/science.155.3768.1409
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Articles

Apatite Crystallites: Effects of Carbonate on Morphology

Racquel Z. Legeros 1, Otto R. Trautz 1, John P. Legeros 1, Edward Klein 1, and W. Paul Shirra 2

1 New York University, 339 East 25 Street, New York 10010
2 Philips Electronic Instruments, Mount Vernon, New York

Carbonate is a substituent in the apatite structure; when present, it limits the size of the growing apatite crystals and so influences their shape that they grow more equiaxed than needle-like. The tendency for carbonate apatites to be equiaxed is related to the nature of the chemical bonds formed in the crystal. The interference of carbonate with the good crystallization of apatite, and its weakening effect on the bonds in the structure, increase the dissolution rate and the solubility, thereby presumably contributing to the susceptibility to caries of dental apatites containing carbonate.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Mechanical Properties of Hydroxyapatite and OH-carbonated Hydroxyapatite Single Crystals.
K. Teraoka, A. Ito, K. Maekawa, K. Onuma, T. Tateishi, and S. Tsutsumi (1998)
Journal of Dental Research 77, 1560-1568
   Abstract »    PDF »
Caries Development in Fluoridated and Non-Fluoridated Deciduous and Permanent Enamel in Situ Examined by Microradiography and Confocal Laser Scanning Microscopy.
A.B. Sonju Clasen, B. Ogaard, H. Duschner, J. Ruben, J. Arends, and T. Sonju (1997)
Advances in Dental Research 11, 442-447
   Abstract »    PDF »
Properties of Heterogeneous Apatites Containing Magnesium, Fluoride, and Carbonate.
M. Okazaki and R.Z. Legeros (1996)
Advances in Dental Research 10, 252-259
   Abstract »    PDF »
Molecular Mechanisms of Dental Enamel Formation.
J.P. Simmer and A.G. Fincham (1995)
Critical Reviews in Oral Biology & Medicine 6, 84-108
   Abstract »    Full Text »    PDF »
Influence of Carbonate on Sintering of Apatites.
Y. DOI. T. Koda, N. Wakamatsu, T. Goto, H. Kamemizu, Y. Moriwaki, M. Adachi, and Y. Suwa (1993)
Journal of Dental Research 72, 1279-1284
   Abstract »    PDF »
Crystallographic Morphology of Heterogeneous Fluoridated Carbonate Apatites.
M. Okazaki (1993)
Journal of Dental Research 72, 1285-1290
   Abstract »    PDF »
Effect of Solution Composition on Morphological and Structural Features of Carbonated Calcium Apatites.
S. Shimoda, T. Aoba, E.C. Moreno, and Y. Miake (1990)
Journal of Dental Research 69, 1731-1740
   Abstract »    PDF »
Some Physico-chemical Properties of Deciduous Enamel of Children with and Without Pre-natal Fluoride Supplementation (PNF).
R.Z. LeGeros, F.B. Glenn, D.D. Lee, and W.D. Glenn (1985)
Journal of Dental Research 64, 465-469
   Abstract »    PDF »
In vitro Caries-like Lesion Formation in F-containing Tooth Enamel.
R.Z. LeGeros, L.M. Silverstone, G. Daculsi, and L.M. Kerebel (1983)
Journal of Dental Research 62, 138-144
   Abstract »    PDF »
Paracrystalline Disorder of Biological and Synthetic Carbonate-substituted Apatites.
D.G.A. Nelson, J.D.B. Featherstone, J.F. Duncan, and T.W. Cutress (1982)
Journal of Dental Research 61, 1274-1281
   Abstract »    PDF »
Radiocarbon: Analysis of Inorganic Carbon of Fossil Bone and Enamel.
V. Haynes and V. Haynes (1968)
Science 161, 687-688
   Abstract »    PDF »


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