Estudio in vitro de la relación entre resistencia de unión a esmalte dental y microfiltración en resinas compuestas fotopolimerizables
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Palavras-chave

microtração; microfiltração; resinas compostas

Como Citar

Estudio in vitro de la relación entre resistencia de unión a esmalte dental y microfiltración en resinas compuestas fotopolimerizables. (2020). Odontoestomatología, 22(35), 38-49. https://doi.org/10.22592/ode2020n35a6

Resumo

Objetivos. Avaliar e comparar a relação entre
a resistência de união imediata ao esmalte
e a microfiltração de dois sistemas restauradores
baseados em resina composta.
Métodos. 40 terceiros molares foram divididos
aleatoriamente em dois grupos: 20 molares
restaurados usando o sistema Adper Single
bond 2 + Filtek Z250 XT (3M ESPE; ST
PAUL, MN, EUA); e 20 molares restaurados
com o sistema Tetric N Bond + Tetric N Ceram
(Ivoclar Vivadent; Schaan, Liechtenstein).
Metade dos dentes de cada grupo foi utilizada
para um teste de resistência de união à microtração,
enquanto a outra metade foi utilizada
para um teste de microfiltração (n = 10).
Resultados. As mídias e o padrão de resistência
de união à microtração foram 27,93
(± 9,55) para Adper Single bond 2 + Filtek
Z250 XT MPa e 33,12 (± 8,18) MPa
para Tetric N Bond + Tetric N Ceram (p =
0,049). Em relação aos valores de microfiltração,
não houve diferença estatisticamente
significativas entre os grupos (p = 0,478).
Não houve correlação significativa observada
entre a resistência de união à microtração
e a microfiltração (R2 = 0,0909; p = 0,196).
Conclusões. Não foi encontrada relação entre
os valores de resistência de união e o grau
de microfiltração.

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