Cambios de color en resinas extra claras expuestas al humo de cigarrillo

Abstract

Objective: To compare the color changes of two types of high value composite resin, exposed to cigarette smoke, polymerized with halogen light. Methods: An In Vitro study was carried out in 14 high value nanohybrid composite resin test bodies from two different commercial houses, photo activated with a halogen lamp, exposed to the smoke of 10 cigarettes, which were divided into 2 subgroups: 7 from Ivoclar Vivadent (Empress Direct) and 7 by Ultradent (Forma). The variables evaluated were the type of resin and color. The initial and final color was evaluated using the RGB scale with a digital spectrophotometer to see the color ranges. The Anova and t student test was applied, a significance level of P less than 0.05 was used for all statistical tests. Results: The means allow defining that having a similar initial behavior in both the Ivoclar high value resins, and Ultradent, when exposed to cigarette smoke, have a different behavior because in Ivoclar the R and G decrease and the B increases, while in Ultradent it was found that all the coordinates increased. Therefore, descriptively there is a change. Conclusions: When comparing the resins of two different houses exposed to cigarette smoke, it was found that the color behavior differs between brands