Resumo

TREVELLIN, Livia Tosi; SHIMAOKA, Angela Mayumi; CARVALHO, Rubens Côrte Real de  e  ANDRADE, Alessandra Pereira de. Remineralizing ability of different bioactive materials on artificially eroded enamel. Rev. Assoc. Paul. Cir. Dent. [online]. 2015, vol.69, n.2, pp. 148-155. ISSN 0004-5276.

The aim of this study was analyze the remineralizing potential of different bioactive compounds on dental enamel submitted to erosive challenge. Forty bovine enamel specimens' teeth with standardized dimensions (4x4mm2) were subjected to erosive challenge with citric acid (pH = 2.3 for one hour) and to different remineralizing treatments with bioactive compounds, composing the experimental groups: G1-without treatment; G2-amorphous calcium phosphate and casein phosphopeptide (RecaldentTM Plus); G3-calcium phosphate nanocluster (NANO P); G4- fluoride 1.23%. The fragments were quantitatively analyzed by the method of dental tissue fluorescence (QFL) in four different moments: baseline, erosive challenge, first day and seventh day. The data obtained through the QLF method were subjected to statistical analysis using two way ANOVA for repeated measurements and Bonferroni multiple comparison (α= 5%). No statistical differences were identified among the experimental groups in regards to the baseline analysis moment and to the erosive challenge moment. In the first day period analysis without treatment showed the highest values of ΔQ (final value of substrate´s mineral loss) while the lowest values were obtained in the G2 and G3 groups, which did not presented statistical difference among them. During the seventh day analysis moment, the lowest value was presented by the G2 group while the highest value was presented by the G1 group. The tests performed led to different degrees of remineralization in dental enamel subjected to erosive challenge. The bioactive compound RecaldentT presented the highest levels of remineralization after the seventh day of treatment.

Palavras-chave : tooth erosion; tooth demineralization; tooth remineralization.