Marginal Microleakage of Glass Ionomer-Based Restorations After Conventional Cavity Preparation and Er: YAG Laser Irradiation

Authors : Zeynep Buket KAYNAR, Nazmiye DÖNMEZ, Seyda HERGUNERSİSO

Pages : 703-711

Doi:10.30621/jbachs.955091

View : 36 | Download : 8

Publication Date : 2022-09-29

Article Type : Research Paper

Abstract :Purpose: This study aimed to evaluate the microleakage of glass ionomer restorations insert ignore into journalissuearticles values(GIC); in Class V cavities prepared with both conventional and Er: YAG laser techniques. Methods: Twenty teeth were used. Standard Class V cavities insert ignore into journalissuearticles values(4mm wide,3m high,3mm deep); were prepared on the buccal and lingual surfaces of teeth. All teeth were randomly divided into four groups. In Groups II and IV, cavities were prepared by Er: YAG laser, and in Groups I and III cavities were conventionally prepared with a diamond bur. Groups I and II were then restored with conventional GIC insert ignore into journalissuearticles values(Ketac,3MEspe, U.S.A.);.Groups III and IV were restored with high viscosity GIC with resin coating insert ignore into journalissuearticles values(EQUIA, GC, Tokyo, Japan);. Specimens were stored in distilled water at 37°C for 24h. Teeth were then subjected to thermo-cycling insert ignore into journalissuearticles values(500 cycles,5°C-55°C);. All teeth were exposed to 50.000 cycles in a chewing simulator. Specimens were stained with 0.5% aqueous basic fuchsin dye and sectioned buccolingually. Dye penetration was scored under a stereomicroscope. The data were analyzed by Kruskal-Wallis One-Way ANOVA and Mann-Whitney U tests. Results: While the highest microleakage scores were observed in the group prepared with Er: YAG laser and restored with conventional GIC the lowest microleakage scores were observed in the group prepared with Er: YAG laser and restored with high viscosity GIC. When cavities prepared with Er: YAG laser or conventional method were restored with high viscosity GIC, no statistically significant difference was found between them insert ignore into journalissuearticles values(p> 0.05);. Conclusion: High viscosity GIC can be preferred as a restorative material in the restorations of Class V cavities prepared using both conventional and Er: YAG lasers.
Keywords : Glass ionomer, microleakage, high viscosity glass ionomer, Er YAG laser

ORIGINAL ARTICLE URL