The degree of crown discoloration induced by a bioceramic and other conventional endodontic sealers

Abstract

Objective: The aim of this study was to compare the degree of crown discoloration induced by a novel bioceramic and conventional endodontic sealers. Materials and Methods: Thirty extracted maxillary central incisors were selected and randomly divided into three groups (n = 10), according to the assigned sealer: G1 – TotalFill, G2 – Apexit Plus, and G3 – AH Plus. Baseline color of the labial surfaces was obtained using a spectrophotometer. Standardized root canal preparation and obturation were completed using ProTaper system and gutta-percha with sealer cement. Access openings were sealed using light-cured resin composite. Specimens were stored in saline and placed in an incubator at 37°C until testing. Crown color was reassessed after 1 week, 1 month, and 3 months. Color change from baseline was calculated using the following equation: ΔE* = ([ΔL*]2 + [Δa*]2 + [Δb*]2)½. Data were analyzed using ANOVA, t-test, and Tukey post hoc test (at P≤ 0.05). Result: In the three groups tested, the highest mean value of color change was found after 3 months, whereas the lowest was at 1 week. Changes were significant in all groups (P Conclusion: It was concluded that all sealers tested result in a measurable and gradual tooth color change. While the bioceramic sealer resulted in a slightly higher color change compared to calcium hydroxide- and resin-based sealers, the difference was not considerable.