Valoración del color en resinas compuestas expuestas a diferentes bebidas : un estudio in-vitro.

Abstract

Introduction: color is one of the most important properties of aesthetic restorations. Color alteration in resin-based materials can be caused by intrinsic and extrinsic factors. Therefore, it is important to know what factors consumed by the patient on a regular basis are related to the alteration of this color, and thus be able to prevent future failures in the aesthetic restorative treatment. Purpose: The purpose of this research work is to determine the factors that are related to the variation in the color of composite resins when exposed in frequently consumed beverages. Materials and methods: this research work is an experimental, invitro, descriptive and cross-sectional study. The sample consisted of 56 discs made with two types of resins composed of the commercial brand Dentsply sirona (Spectra Basic and Spectra Smart), the same ones that were made in the prosthodontics laboratory of the Catholic University of Santiago de Guayaquil. Each of the samples were exposed to drinks of habitual consumption such as: coffee, Coca-Cola and water. The color was registered by visual method through Vita Classical colorimeter and by objective method with the help of digital images in black and white background. Results: Coca-Cola was the drink with the greatest color change, with an average of 84% in tone (H) and 65% in brightness (B). The samples immersed in coffee will present an alteration of the color with an average of 79% in the tone (H) and 55% in the brightness, while the water was the substance that caused the lowest pigmentation, with an average of 65% in the tone ( H) and 51% in brightness (B). Discussion: in this study, it was observed that Coca-Cola was the drink that caused the greatest visible alteration, followed by coffee and water, taking into account that the type of resin used for the study was from the Dentsply Sirona commercial house, compared to previous studies where the type of resin-based restorative material used for the studies was from the commercial house Ivoclar Vivadent and 3M. Conclusion: it was concluded that the drinks of habitual consumption by society, such as: coffee, Coca-Cola and water, produce pigmentations at the level of the resin materials based on composite resin.