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Evaluation of different fluoride concentrations supplemented with trimetaphosphate on enamel de- and remineralization
E M Takeshita1, R A M Exterkate, A C B Delbem
1Department of Cariology Endodontology Pedodontology, Academic Center for Dentistry Amsterdam, University of Amsterdam and Free University, Amsterdam, The Netherlands. elimitsue@yahoo.com.br
Abstract:
Trimetaphosphate (TMP) effects on demineralized bovine enamel were studied after 15 days of pH cycling. Treatments included 30 wt% (weight percent) dilutions of 0, 500, 1,500 or 3,000 μg F/g aqueous NaF solutions with or without 3% TMP. Treated specimens were assessed by transverse microradiography. With the exception of the 3,000 μg F/g case, 3% TMP addition provided significant additional overall remineralization compared with F alone. Mineral content profiles differed significantly between corresponding F and F + TMP groups. Fluoride alone resulted in more remineralization in the original demineralized zone, whereas F + TMP caused less demineralization in the underlying, originally sound enamel.