Influência do tucupi na rugosidade superficial, microdureza, ultramorfologia e variação de massa do esmalte dental

Abstract

The study evaluated the influence of tucupi on surface roughness, microhardness, ultra morphology and variation of dental enamel. Ninety healthy bovine incisor teeth of the species Bos taurus indicus were used. After the specimens were made, they were divided into the following groups: G1- tucupi, G2- cola-based refrigerant, G3-istilled water, all evaluated at times T0 (before any intervention), T10 (10 days after the proposed treatments), T20 (20 days after the proposed treatments) and T30 (after 30 days of the proposed treatments). In order to evaluate the properties of the treated enamel, microhardness, surface roughness, scanning electron microscopy (SEM) and mass variation analyzes were performed at the 4 times mentioned above. After confirming the normality of the data (Shapiro-Wilk test) of microhardness, roughness and mass variation analyzes, a 2-factor analysis of variance for repeated measures (α = 5%) was performed, followed by Sidak post-test. , with results described as mean and standard deviation. The roughness means increased for all groups tested, with no statistical difference only in G3 for all evaluated times. Regarding microhardness, all groups had loss with the lowest average observed in G1 in T30. In the evaluation of enamel mass variation, the lowest average was in G2 at time T3, with no statistical difference between T10 and T20 for the group in question. Regarding MEV, all groups treated with acid media G1 and G2 showed disorganization of the enamel surface layer. It was concluded that tucupi has low pH and high titratable total acidity, being able to gradually decrease enamel microhardness, increasing surface roughness and causing loss of dental enamel.