HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (9) Citing Articles via Google Scholar Google Scholar Articles by Vieira, A.P.G.F. Articles by Grynpas, M.D. Search for Related Content PubMed PubMed Citation Articles by Vieira, A.P.G.F. Articles by Grynpas, M.D.

Is Fluoride Concentration in Dentin and Enamel a Good Indicator of Dental Fluorosis?

¹ Faculty of Dentistry, University of Toronto;
² Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue Room 840, Toronto, ON M5G 1X5, Canada;
³ Department of Chemical Engineering and Applied Chemistry, University of Toronto; and
⁴ Universidade Federal do Ceara, Brazil;

^* corresponding author, grynpas{at}mshri.on.ca

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).

KEY WORDS: fluoride • dentin • enamel • dental fluorosis

This article has been cited by other articles:

				F. Rojas-Sanchez, M. Alaminos, A. Campos, H. Rivera, and M.C. Sanchez-Quevedo Dentin in Severe Fluorosis: a Quantitative Histochemical Study J. Dent. Res., September 1, 2007; 86(9): 857 - 861. [Abstract] [Full Text] [PDF]

				A. Vieira, R. Hancock, M. Dumitriu, M. Schwartz, H. Limeback, and M. Grynpas How Does Fluoride Affect Dentin Microhardness and Mineralization? J. Dent. Res., October 1, 2005; 84(10): 951 - 957. [Abstract] [Full Text] [PDF]

				A. P.G.F. VIEIRA, H. P. LAWRENCE, H. LIMEBACK, F. C. SAMPAIO, and M. GRYNPAS A visual analog scale for measuring dental fluorosis severity J Am Dent Assoc, July 1, 2005; 136(7): 895 - 901. [Abstract] [Full Text] [PDF]

				K. Kubota, D. H. Lee, M. Tsuchiya, C. S. Young, E. T. Everett, E. A. Martinez-Mier, M. L. Snead, L. Nguyen, F. Urano, and J. D. Bartlett Fluoride Induces Endoplasmic Reticulum Stress in Ameloblasts Responsible for Dental Enamel Formation J. Biol. Chem., June 17, 2005; 280(24): 23194 - 23202. [Abstract] [Full Text] [PDF]