Document Detail

Is fluoride concentration in dentin and enamel a good indicator of dental fluorosis?
MedLine Citation:
PMID:  14691118     Owner:  NLM     Status:  MEDLINE    
Despite some studies correlating dental fluorosis (DF) and fluoride (F) concentration in dental enamel, no information is available about DF and dentin F concentration. Our objective was to determine the correlation between teeth F concentration and DF severity in unerupted human 3rd molars, and the correlation between dentin and enamel F concentrations in the same tooth. Ninety-nine 3rd molars were studied-53 from Fortaleza, Brazil (F water, 0.7 ppm), 22 from Toronto (1.0 ppm), and 24 from Montreal (0.2 ppm). DF severity was evaluated according to the Thylstrup-Fejerskov Index, while F concentration was analyzed by Instrumental Neutron Activation Analysis. DF severity varied between TF0 and TF4, while F concentration ranged between 39 and 550 ppm in enamel and 101 and 860 ppm in dentin. Our results showed correlation between dentin F concentration and DF (r(S) = 0.316, p = 0.001), but no correlation between enamel F concentration and DF (r(S) = 0.154, p = 0.133). No correlation was observed between dentin and enamel F concentrations in the same tooth (r(S) = 0.064, p = 0.536).
A P G F Vieira; R Hancock; H Limeback; R Maia; M D Grynpas
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dental research     Volume:  83     ISSN:  0022-0345     ISO Abbreviation:  J. Dent. Res.     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2003-12-23     Completed Date:  2004-03-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0354343     Medline TA:  J Dent Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  76-80     Citation Subset:  D; IM    
Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1X5, Canada.
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MeSH Terms
Cariostatic Agents / analysis*
Dental Enamel / chemistry*
Dentin / chemistry*
Fluorides / analysis*
Fluorosis, Dental / classification,  diagnosis*
Molar, Third / chemistry
Neutron Activation Analysis
Statistics, Nonparametric
Tooth, Unerupted / metabolism
Water Supply / analysis
Reg. No./Substance:
0/Cariostatic Agents; 0/Fluorides

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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