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Microdureza de Restaurações de Resina Composta Expostas a Agentes Clareadores e Coca Cola

DOI: http://dx.doi.org/10.15603/2176-1000/odonto.v15n30p27-33

https://www.metodista.br/revistas/revistas-ims/index.php/O1/index 

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Rodrigo M. de Araújo1, Carlos R. G. Torres2 & Maria A. M. de Araújo3

 

Resumo: O objetivo deste estudo foi avaliar os efeitos de três agentes clareadores e uma bebida carbonatada, à base de cola, sobre a microdureza de restaurações de resina composta. Foram utilizados quarenta dentes incisivos bovinos embutidos em resina acrílica, nas superfícies vestibulares foram realizados preparos cavitários padronizados e restaurados com resina composta (Palfique Estelite – Tokuyama). As amostras foram avaliadas em microdurômetro (Future Tech FM 700) após a divisão em quatro grupos, uma leitura inicial da microdureza serviu como controle do experimento. Grupo 1: peróxido de carbamida a 10% (Whiteness Perfect – FGM) Grupo 2: refrigerante Coca-Cola Grupo 3: peróxido de carbamida a 37% (Whiteness Super – FGM), Grupo 4: peróxido de hidrogênio a 35% (Whiteness HP – FGM). Os dados foram submetidos aos testes estatísticos ANOVA e Tukey. Conclui-se que os agentes clareadores e a Coca Cola não alteraram a microdureza da resina composta durante os 14 dias de desafio químico.

Palavras-chave: microdureza, agentes clareadores; resinas compostas; Coca-Cola

 

Abstract: The purpose of this study was to evaluate the effect of 3 bleaching agents and a carbonated soft drink on composite resin restorations microhardness.. Forty fresh bovine incisive teeth were used. Next, they were embedded in acrylic resin, exception made to test facial surfaces, where standardized cavity preparations were carried out and restored composite resin ( Palfique Estelite –Toduyama). After samples were divided into 4 groups, baseline microhardness measurements were taken with a microdurometer (Future Tech – FM 700) ,that were used as experimental controls. Group 1: 10% carbamide peroxide (Whiteness Perfect – FGM) Group 2: soft drink Coca-Cola Group 3: 37% carbamide peroxide gel (Whiteness Super – FGM Group 4 35% hydrogen peroxide (Whiteness HP – FGM), Data were submitted to ANOVA and Tukey’s. Conclusions were that bleaching agents and Coca-Cola did not alter composite resin microhardness.

Key words: microhardness, bleaching agents, composite resins, Coca-Cola

 

1 Mestre - Programa de Pós-Graduação em Odontologia Restauradora - Especialidade em Dentística - Faculdade de Odontologia de São José dos Campos - Unesp. Rua João Cursino 104 Apto 92; Vila Icaraí; São José dos Campos; São Paulo, CEP 12243680.
2 Professor Doutor do Departamento de Odontologia Restauradora - Faculdade de Odontologia de São José dos Campos – Unesp.
3 Professora Titular do Departamento de Odontologia Restauradora - Faculdade de Odontologia de São José dos Campos – Unesp.

 

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