Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.07117
Revista de Odontologia da UNESP
Original Article

Efeito de diferentes colutórios sobre a microdureza de resinas compostas fotopolimerizáveis

Effect of different mouthwashes on microhardness of photopolymerizable composite resins

Rafaella Bastos LEITE; Ruthineia Diogenes Alves Uchoa LINS; Danielle do Nascimento BARBOSA; Everton Freitas de MORAIS; Olímpia Crispim Silveira RAMALHO

http://dx.doi.org/10.1590/1807-2577.07117 Rev. odontol. UNESP, vol.47, n3, p.125-130, 2018
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Resumo

Resumo: Introdução: Na Odontologia, as resinas são utilizadas como materiais restauradores, para o restabelecimento da estética, da função e da forma dos dentes.

Objetivo: Avaliar in vitro a microdureza das resinas Filtek Z350 XT® e Filtek Z250 XT®, submetidas ao contato direto quando expostas a colutórios.

Material e método: Dez corpos de prova foram confeccionados em uma matriz de náilon, em dois incrementos, e foram fotoativados por 20 s. A homogeneidade da amostra foi verificada através dos testes Mann-Whitney e Kruskal-Wallis, e uma variância paramétrica foi realizada (ANOVA) para a análise de significância, aplicando-se o teste de Tukey a fim de comparar os resultados (α=5%).

Resultado: O maior valor médio foi apresentado pelo grupo G1 (Filtek Z350 XT- água destilada- controle) – 138,22(±21,8) e os menores valores foram do grupo G9 (Filtek Z250 XT- Solução de Camomila) – 87,12(±4,39) e do grupo G10 (Filtek Z250 XT- Solução de Romã) – 99,32(±11,10). A resina Filtek Z350 XT foi superior à resina Filtek Z250 XT (p=0,015).

Conclusão: A resina Filtek Z350 XT apresentou melhores resultados quando estes foram comparados aos resultados da Filtek Z250 XT.

Palavras-chave

Resinas compostas, testes de dureza, colutórios

Abstract

Abstract: Introduction: In dentistry, resins are used as restorative materials for the reconstruction of aesthetics, function and shape of teeth.

Aim: To evaluate in vitro the microhardness of Filtek Z350 XT® and Filtek Z250 XT® resins subjected to direct contact when exposed to mouthwashes.

Material and method: Ten specimens were prepared in a nylon matrix in two increments and photoactivated for 20s. The homogeneity of the sample was verified through the Mann-Whitney and Kruskal-Wallis tests and a parametric variance was performed (ANOVA), and for Tukey significance analysis (α=5%).

Result: The highest mean value was presented by group G1 (Filtek Z350 XT- distilled water- control) – 138.22 (±21.8), and the least values ​​were from group G9 (Filtek Z250 XT- Chamomile Solution) – 87.12 (±4.39) and the G10 group (Filtek Z250 XT – Pomegranate solution) – 99.32 (±11.10). Filtek Z350 XT resin was superior to Filtek Z250 XT (p=0.015).

Conclusion: Filtek Z350 XT resin presented better results than Filtek Z250 XT.
 

Keywords

Composite resins, hardness tests, mouthpiece

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