| How does fluoride concentration in the tooth affect apatite crystal size? | |
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MedLine Citation:
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PMID: 14578504 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Despite fluoride's (F) well-documented ability to prevent caries, the effects of F concentrations on enamel and dentin apatite crystals are unknown. The present study examined the hypothesis that tooth F concentration and tooth crystallite size correlate. One hundred human unerupted third molars were studied-53 from Fortaleza-Brazil (F water 0.7 ppm), 23 from Toronto (1.0 ppm), and 24 from Montreal (0.2 ppm). F concentration was analyzed by Neutron Activation Analysis and apatite crystal size by powder x-ray diffraction. A positive correlation between dentin F concentration and enamel crystallite length and width was found. Enamel crystallite length was significantly greater in teeth from Fortaleza than in teeth from Toronto (p = 0.011) and Montreal (p = 0.003). Enamel crystallite widths were significantly greater in Fortaleza teeth compared with those from Toronto (p = 0.020) and Montreal (p < 0.001). No difference in the dentin crystallite size was seen in the 3 regions. Thus, tooth F concentration and crystallite size correlate. |
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Authors:
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A Vieira; R Hancock; H Limeback; M Schwartz; M Grynpas |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of dental research Volume: 82 ISSN: 0022-0345 ISO Abbreviation: J. Dent. Res. Publication Date: 2003 Nov |
Date Detail:
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Created Date: 2003-10-27 Completed Date: 2003-11-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0354343 Medline TA: J Dent Res Country: United States |
Other Details:
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Languages: eng Pagination: 909-13 Citation Subset: D; IM |
Affiliation:
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Faculty of Dentistry, University of Toronto, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, ON, Canada. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Brazil Cariostatic Agents / analysis* Crystallization Crystallography, X-Ray Dental Enamel / chemistry* Dentin / chemistry* Fluorides / analysis* Humans Hydroxyapatites / chemistry* Molar Neutron Activation Analysis Ontario Quebec Statistics, Nonparametric Water Supply / analysis |
| Chemical | |
Reg. No./Substance:
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0/Cariostatic Agents; 0/Fluorides; 0/Hydroxyapatites |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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