Alteração cromática de resinas compostas laboratoriais submetidas à imersão em diferentes soluções

• Autor(a) principal: Santos, Daniela Micheline dos [UNESP]
• Data de Publicação: 2012
• Outros Autores: Paula, Adrielle Mendes de [UNESP], Goiato, Marcelo Coelho [UNESP], Massunari, Loiane [UNESP], Vechiato Filho, Aljomar José [UNESP], Moreno, Amália [UNESP], Haddad, Marcela Filié [UNESP], Medeiros, Rodrigo Antonio de [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://apcdaracatuba.com.br/revista/2013/08/v33n22013.htm; http://hdl.handle.net/11449/133218
• topic: Dental esthetic; Color; Coloring agents; Estética dentária; Cor; Agentes corantes

The pigmentation of indirect composite resins has been one of the most common reasons that lead the restorative treatment to failure. The purpose of this study was to investigate the effect of different solutions on color stability of indirect composite resins. Five brands of indirect composite resins were tested: Adoro, Resilab, Cristobal, Sinfony and Epricord. The samples were immerged in eleven solutions (n=10): common liquid foods (coke soft drink, red wine, coffee and orange juice), mounthrinses (Listerine, Oral-B, Colgate Plax and Periogard) and bleaching agents (carbamide peroxide 16%, 7.5% and hydrogen peroxide 38%) and artificial saliva (control group). The color was measured by a spectrophotometer before and after 7, 14 and 21 days of immersion in common liquid foods, after 12, 24, 36 and 60 hours of immersion in mounthrinses and after 7 and 14 days of immersion in bleaching agents. The Cristobal and Adoro resins showed highest values of ΔE statistically significant compared to the others resin brands. Adoro’s ΔE values changed significantly after the immersion process in red wine and coffee and also between periods measured. The resins Cristobal and Sinfony showed the highest values of ΔE after the immersion process in Listerine with difference statistically significant in comparison to control group. Besides, there was difference statistically significant of the ΔE values  for  Cristobal  after  immersion  in hydrogen peroxide 7,5% in comparison to control group. It can be conclude that all the solutions promoted color change on the indirect composite resins. However, ΔE values  are  whitin  the  values clinically acceptable.