Influence of Remineralizing Dentifrice in the Treatment of Erosive Enamel Lesions

Abstract

O objetivo deste trabalho in vitro foi avaliar a influência de diferentes agentes remineralizantes no tratamento de lesões erosivas em esmalte. Foram confeccionados espécimes de 4mmx4mm e 3 mm de espessura a partir da superfície vestibular de incisivos bovinos (n=10) e divididos aleatoriamente em 4 grupos. G1=aplicação do dentifrício remineralizante, G2= aplicação do agente potencializador remineralizante, G3= dentifrício remineralizante + agente potencializador remineralizante, G4=aplicação de verniz fluoretado (controle positivo), G5=nenhum tratamento (controle negativo). Os espécimes foram imersos em refrigerante durante um período de 10 dias. A rugosidade superficial foi analisada por meio de microscopia confocal de varredura a laser. Os dados foram analisados quanto à homogeneidade (Levene’s) e normalidade (Kolmogorov- Smirnov). Foram realizados testes paramétricos com análise de variância a dois critérios: fator tempo e fator tratamento, e pós-teste de Tukey para diferenciação das médias. Todos os testes estatísticos tiveram nível de significância de 5% (α=0,05). Os resultados obtidos mostraram diferenças estatisticamente significantes, demonstrando a redução da rugosidade da superfície do esmalte logo após o primeiro tratamento (G3) e para os demais grupos (G1, G2 e G4) somente após o segundo tratamento. Concluiu-se que a utilização de dentifrício composto por silicato de cálcio e fosfato de sódio influenciou na rugosidade do esmalte erodido do dente bovino.Palavras-chave: Dentifrícios. Erosão Dentária. Esmalte Dentário.Abstract The objective of this in vitro study was to evaluate the influence of different remineralizing agents in the treatment of enamel erosive lesions. Specimens of 4mmx4mm and 3mm thickness were made from the buccal surface of bovine incisors (n=10) and randomly divided into 4 groups. G1 = application of the remineralizing dentifrice, G2 = application of the remineralizing agent, G3 = remineralizing dentifrice + remineralizing agente, G4 = application of fluoride varnish (positive control), G5 = no treatment Specimens were immersed in refrigerant solution during a period of 10 days. The surface roughness was analyzed by means of confocal laser scanning microscopy. The data were analyzed for homogeneity (Levene's) and normality (Kolmogorov-Smirnov). Parametric tests with analysis of variance were performed on two criteria: time factor and treatment factor, and Tukey post-test for differentiation of means. All tests were statistically significant at 5% (α = 0.05). The results showed statistically significant difference, demonstrating the reduction of surface roughness after the first treatment (G3) and the other groups (G1, G2 and G4) only after the second treatment. It was concluded that the use of dentifrice composed of calcium silicate and sodium phosphate influenced the roughness of the eroded tooth enamel of the bovine tooth.Keywords: Dentifrices. Tooth Erosion. Tooth Enamel.

Influence of Remineralizing Agents on the Surface Roughness of Eroded Dental Enamel: in Vitro Study

“…14 In addition, bovine incisors are frequently used in dental research due to the difficult to obtain intact human teeth, 15 and its larger surface allow the use of demineralization and remineralization researches. 5,6,8,16,17 In this study it was observed that there was no significant difference in statistical values between the groups of the control region, that indicates that the waterproofing of the specimens with the nail enamel and sticky wax was effective (Table 1). However, in the experimental region of the specimens the values of surface roughness presented statistical similar values between the groups and statistically higher when compared with that obtained at the control region ( Table 1).…”

“…7 Fluoride compounds are effective in dental remineralization increasing tooth acid resistance after an acid challenge 8 because in high Influence of Remineralizing Agents on the Surface Roughness of Eroded Dental Enamel: in Vitro Study concentrations they promote the precipitation of a calcium fluoride layer in the enamel 9 that acts as a barrier on this surface, acting as a fluoride reservoir inhibiting contact of the acids with the dental surface. 8,[10][11][12][13] Furthermore, the use of a calcium silicate and sodium phosphate-based toothpaste presented great results as a treatment to erosive dental lesions because its regular use can promote mineral regeneration at the enamel surface. 8 Thus, the present study analyzed the influence of different remineralizing agents on the treatment of acid erosion in dental enamel by the evaluation of surface roughness (µm 2 ) with confocal laser scanning microscopy.…”

“…8,[10][11][12][13] Furthermore, the use of a calcium silicate and sodium phosphate-based toothpaste presented great results as a treatment to erosive dental lesions because its regular use can promote mineral regeneration at the enamel surface. 8 Thus, the present study analyzed the influence of different remineralizing agents on the treatment of acid erosion in dental enamel by the evaluation of surface roughness (µm 2 ) with confocal laser scanning microscopy. The null hypothesis of this study was that the erosive challenge and the different surfaces treatments would not result in statistically significant differences in surface roughness values.…”

The effect of Phytosphingosine and bioactive glass-ceramics in preventing dental enamel erosion

“…Fluoride-containing formulations, such as sodium fluoride, have been extensively studied as an anti-erosive agent. In high concentrations, they promote the precipitation of a calcium fluoride layer in the enamel that acts as a fluoride reservoir and reduces the dissolution of enamel exposed to acids 16 . The use of calcium silicate and sodium phosphate-based compounds, such as casein phosphopetides and amorphous calcium phosphates, has also been proposed 17 .…”