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Abstract(s)
INTRODUÇÃO: A aparência estética das restaurações é um dos fatores cruciais para os pacientes. A influencia do sistema adesivo na cor da restauração poderá ter impacto na cor final da restauração. As resinas bulk fill vieram simplificar a técnica de restauração.OBJETIVOS: Com este estudo pretende-se determinar a influência de diferentes sistemas adesivos na alteração colorimétrica das resinas bulk fill. MATERIAIS E MÉTODOS: Foram realizados 120 discos de resina composta com resina UD3. Foram divididos em 4 grupos, um de controlo, sem sistema adesivo e 3 grupos de estudo nos quais foram aplicados os sistemas adesivos Clearfil Universal Bond (Kuraray, Japão), One Coat 7 universal (Colténe, Suíça) e Futurabond U (Voco, Alemanha). Efetuaram-se 60 discos de cada resina bulk fill, as resinas Fill Up (Colténe, Suíça) e Xtra-fill (Voco, Alemanha). Foi feita a adesão dos discos de resina composta com os discos de resina bulk fill com os diferentes sistemas adesivos. As leituras de cor foram efetuadas com recurso um Espectrofotómetro (VITA Easyshade® Compact, Vita Zahnfabrik, Bad Säckingen, Alemanha). Seguidamente os grupos de estudo, foram colocados em solução corante. A análise de dados foi efetuada utilizando o programa de análise estatística SPSS® v.24.0 (Statistical Package for the Social Sciences, IBM, EUA). RESULTADOS E DISCUSSÃO: Através do estudo verificou-se que o sistema adesivo altera a cor da restauração final uma vez que houve diferenças significativas entre os grupos. Além disso verificou-se que a resina Xtra-Fill é a mais suscetível a alterações de cor visto que foi a que apresentou maiores valores de ΔE, o que se explica devido á sua translucidez. CONCLUSÃO: Aquando da utilização de resinas translucidas como é o caso das resinas bulk fill é necessário ter em atenção o sistema adesivo utilizado, procurando sempre aumentar a longevidade da restauração.
INTRODUCTION: The aesthetic appearance of restorations is a crucial factor for patients. The influence of the adhesive system on the restoration’s may have an impact on the final color of the restoration. The bulk fill resisns have simplified the restoration technique of posterior teeth. OBJECTIVES: The goal of this study is to determine the influence of different adhesive systems in the color change of bulk fill resins. MATERIALS AND METHODS: 120 composite resin disks were prepared with UD3 resin. These were divided into 4 groups: a control group without adhesive system and 3 study groups to which Clearfil Universal Bond (Kuraray, Japan), One Coat 7 universal (Colténe, Switzerland) and Futurabond U (Voco, Germany) adhesive systems were applied. 60 disks of composite resin were coupled with the bulk fill resin disks using the different adhesive systems. The color readings were made using a spectrophotometer (VITA Easyshade® Compact, Vita Zahnfabrik, Bad Säckingen, Germany). Afterwards, the study groups were placed in a dye solution. The results analysis was done using SPSS® v.24.0 (Statistical Package for the Social Sciences, IBM, EUA), a statistical analysis program. RESULTS AND DISCUSSION: It was verified, through this study, that the adhesive system changes the color of the final restoration since there were significant changes between the groups. Furthermore, the Xtra-Fill resin is the most susceptible to color changes since it was the one that showed the biggest ΔE values, which can be explained due to its translucency. CONCLUSION: When translucent resins are applied, which is the case with bulk fill resins, it becomes necessary to pay special attention to the adhesive system used, always seeking restauration longevity improvements.
INTRODUCTION: The aesthetic appearance of restorations is a crucial factor for patients. The influence of the adhesive system on the restoration’s may have an impact on the final color of the restoration. The bulk fill resisns have simplified the restoration technique of posterior teeth. OBJECTIVES: The goal of this study is to determine the influence of different adhesive systems in the color change of bulk fill resins. MATERIALS AND METHODS: 120 composite resin disks were prepared with UD3 resin. These were divided into 4 groups: a control group without adhesive system and 3 study groups to which Clearfil Universal Bond (Kuraray, Japan), One Coat 7 universal (Colténe, Switzerland) and Futurabond U (Voco, Germany) adhesive systems were applied. 60 disks of composite resin were coupled with the bulk fill resin disks using the different adhesive systems. The color readings were made using a spectrophotometer (VITA Easyshade® Compact, Vita Zahnfabrik, Bad Säckingen, Germany). Afterwards, the study groups were placed in a dye solution. The results analysis was done using SPSS® v.24.0 (Statistical Package for the Social Sciences, IBM, EUA), a statistical analysis program. RESULTS AND DISCUSSION: It was verified, through this study, that the adhesive system changes the color of the final restoration since there were significant changes between the groups. Furthermore, the Xtra-Fill resin is the most susceptible to color changes since it was the one that showed the biggest ΔE values, which can be explained due to its translucency. CONCLUSION: When translucent resins are applied, which is the case with bulk fill resins, it becomes necessary to pay special attention to the adhesive system used, always seeking restauration longevity improvements.
Description
Keywords
Resinas compostas Resinas bulk fill Sistema adesivo Alteração de cor em resinas compostas Cor em dentisteria operatória Espectrofotómetro Compound resins Bulk fill resins Adhesive system Color alteration in compound resins Color in dentistry Spectrophotometer