Estabilidad del color entre resinas compuestas híbrida y manohíbrida. Estudio in vitro. UCSG Semestre B 2017.

Abstract

Introduction: aesthetics is a fundamental factor during the determination of the quality of a restoration, therefore, aesthetic restorative materials must blend in with the natural appearance of the tooth both in color and stability over time. That being the case, polishing is important to avoid the loss of aesthetic properties. Objective: the purpose of this study is to assess the color stability of restorative materials by an in vitro study between composite resins in order to find the best alternative for the preparation of restorations. Materials and Methods: he present study was designed as experimental in vitro of a descriptive and observational type. 80 discs were made discs, 40 for each brand of resin. Four groups were made, one for resins not polished and three groups for each polishing system. The data was collected by means of an observation instrument based on the color Vita guide of values scale. Results: most samples showed changes in color. On day 1 resin 250XT presented the A4 tone, on the 7th it had the B4 and at 30 days the resin Z250, it registered a B4 submerged in drinks. The Sof-Lex system in Z250 resins and Z250XT presented 50% of color A2 and at day 30 it increased in the Z250XT a C4 (10%). The Jiffy system in Z250 presented a B4 (40%) on the 30th and a C3 (50%) on the Z250XT. The Astro-Pol system in Z250 presented at 30 days C3 (40%) and in the Z250XT a C4 (50%). The resins unpolished Z250 at 30 days presented B4 (50%) and in resin Z250XT a C2 (40%). Conclusion: the resins that had greater pigmentation were Filtek Z250XT resin when submerged in substances. Filtek Z250 resins showed significant changes in terms of variation of color. The substance that had the most pigmentation was red wine. Concluding that polishing is very important to maintain stability