Effect coronal restoration type quality in teeth after root canal treatment on healing of periapical lesions

Root Canal Treatment (RCT) is one of the steps for cleaning necrotic tissue and then filling the root canals and adequate coronal restorations. Successful root canal treatment is achieved if there are no complaints during the one-year observation period and the periapical lesions decrease. The aim of this study is to determine the effect of the quality of coronal restoration in teeth after root canal treatment on the healing of periapical lesions. This cross-sectional study used secondary data, specifically root canal treatment periapical radiographs. The selection of samples was based on inclusion criteria. An evaluation was carried out by observing the quality of restoration based on Ray & Trope criteria modification and healing of periapical lesions based on PAI. Analysis using the Kappa, Wilcoxon, and Multiple Linear Regression tests. The univariate analysis resulted in the highest number and percentage in this study, namely a score of 2 on the quality of the coronal restoration by 28 (56%), a score of 2 on the periapical status of the pre-RCT teeth by 22 (44%), and a score of 1 on the periapical status of the post-RCT teeth by 29 (58%). Bivariate analysis using the Wilcoxon test yielded a significance value of 0.000 with a decrease in periapical lesions of 27 (50%), and there was no change in the periapical lesion of 23 (46%).