Análise da hibridização dentinária na alteração cromática coronária frente ao uso de cimentos obturadores do canal radicular e cimento portland
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2021-02-22
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Universidade Federal de Goiás
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Objective: This study evaluated the influence of dentin hybridization in the coronary chromatic alteration of bovine teeth when using different endodontic cements based on calcium silicate and Portland cement. Material and method: 200 bovine central incisors were divided into two groups: G1 with the presence of dentin hybridization and G2 without the presence of dentin hybridization. The teeth were subjected to colorimetric analysis using the Easyshade spectrophotometer at four different times: determining the color of the dental substrate before root canal filling; seven days after root canal filling, sixty days after root canal filling and one hundred eighty days after root canal filling. The data were tabulated and evaluated for normality and homogeneity by the Shapiro-Wilk and Levene tests, respectively. Two-way analysis of variance was performed, with Sidak's post-test for multiple comparisons, with a significance level of 5% (α = 0.05). Results: Dentin hybridization influenced the coronary chromatic alteration of Sealapex cement after 7 days and in Bio-C Sealer and AH Plus cements after 60 days, but all endodontic cements caused clinically noticeable chromatic changes after 7 days, 60 days and 180 days, independent of hybridization. After 7 days, the AH Plus endodontic cement obtained the highest ΔE * when hybridized and the Endofill endodontic cement obtained the highest ΔE * when not hybridized. After 60 days, the AH Plus endodontic cement obtained the highest ΔE * when hybridized and non-hybridized. After 180 days, Sealapex endodontic cement obtained the highest ΔE * when hybridized and AH Plus endodontic cement obtained the highest ΔE * when not hybridized. Conclusion: All endodontic cements caused clinically perceptible chromatic changes in the endodontically treated teeth after 7 days, 60 days and 180 days, regardless of dentin hybridization. The studied endodontic cements behaved in different ways regarding a coronary chromatic alteration, being difficult to predict a unique behavior.
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CHAVES, L. S. Análise da hibridização dentinária na alteração cromática coronária frente ao uso de cimentos obturadores do canal radicular e cimento portland. 2021. 51 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2021.