Potensi Protaper Retreatment dan Kombinasi XP-Endo Finisher terhadap Kebersihan Saluran Akar yang Diobturasi dengan Bioceramic-Coated Gutta Percha pada Endodontic Retreatment : In Vitro

Abstract

Introduction : The elimination of obturation materials in endodontic retreatment is one of the mandatory steps to achieve optimal disinfection process. The utilization of bc-coated guttapercha with bioceramic sealer can enhance adhesion, thus increasing the difficulty during endodontic retreatment procedure. The use of non-linear motion files such as XP-Endo Finisher can improve the cleanliness level of the root canal walls. The objective of this study is to determine the effectiveness of XP-Endo Finisher in terms of eliminating obturation materials consisting of bioceramic coated gutta-percha with bioceramic sealer in endodontic retreatment. Materials and methods : Twenty-four single-rooted mandibular premolar teeth that met the inclusion criteria underwent decoronation at the Cementoenamel Junction (CEJ) level and endodontically treated up to obturation stage, followed by endodontic retreatment procedure. The teeth were divided into four groups: Group A (bc-coated gutta-percha group prepared with Protaper Retreatment), Group B (conventional gutta-percha group prepared with Protaper Retreatment), Group C (bc-coated gutta-percha group prepared with Protaper Retreatment and XP-Endo Finisher), and Group D (conventional gutta-percha group prepared with Protaper Retreatment and XP-Endo Finisher). All teeth were longitudinally split into buccal and lingual, and the dentinal walls were examined using a scanning electron microscope (SEM) at the apical third of the root canal. The SEM results were divided into 9 areas and evaluated by two observers using a doubleblind method. The obtained data were subjected to One-way ANOVA statistical analysis, followed by post hoc LSD test. Results : The results of the One-way ANOVA test showed a significant difference in the cleanliness level of the root canal walls among all the groups. The Post Hoc LSD test revealed a significant difference among all the groups except for Group A compared to Group C. Conclusion : The elimination of bc-coated gutta-percha is more challenging compared to conventional gutta-percha. The use of XP-Endo Finisher enhances the cleanliness of the root canal walls during endodontic retreatment procedures.