In vitro effect of low-fluoride toothpastes containing sodium trimetaphosphate on enamel erosion.

Autor: Cruz NV; Araçatuba Dental School, Univ. Estadual Paulista (UNESP), Araçatuba, São Paulo, Brazil., Pessan JP; Araçatuba Dental School, Univ. Estadual Paulista (UNESP), Araçatuba, São Paulo, Brazil., Manarelli MM; Araçatuba Dental School, Univ. Estadual Paulista (UNESP), Araçatuba, São Paulo, Brazil., Souza MD; Araçatuba Dental School, Univ. Estadual Paulista (UNESP), Araçatuba, São Paulo, Brazil., Delbem AC; Araçatuba Dental School, Univ. Estadual Paulista (UNESP), Araçatuba, São Paulo, Brazil. Electronic address: adelbem@foa.unesp.br.
Jazyk: angličtina
Zdroj: Archives of oral biology [Arch Oral Biol] 2015 Sep; Vol. 60 (9), pp. 1231-6. Date of Electronic Publication: 2015 Jun 06.
DOI: 10.1016/j.archoralbio.2015.05.010
Abstrakt: Objective: To evaluate the effect of a low-fluoride dentifrice (LFD) containing sodium trimetaphosphate (TMP) on enamel erosion in vitro.
Design: Bovine enamel blocks (n=144) were selected by surface hardness (SH) and subjected to erosive challenges, in two sets of experiments for 2 and 5 days. Blocks were randomly assigned to groups treated with slurries (5mL/block, for 15s) of following dentifrices: Placebo (no fluoride or TMP); LFD (250ppm F); LFD plus 0.25, 0.5, or 1.0% TMP; and a commercial positive control (1,425ppm F). The erosive challenge was produced by immersion in a soft drink (pH 2.8) for 5min, four times/day, interspersed by immersion in artificial saliva for 1h. SH and surface wear were analyzed as response variables. Data were submitted to 2-way ANOVA, followed by Student-Newman-Keuls test (p<0.05).
Results: All groups treated with LFDs containing TMP had significantly lower enamel wear when compared with the other groups tested (p<0.001). Also, the LFDs containing TPM at lower concentrations promoted SH similar to the commercial positive control, both being significantly higher than the LFD without TMP and Placebo (p<0.001).
Conclusion: The supplementation of LFDs with TMP is able to significantly increase the anti-erosive potential of these formulations in vitro.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: