Akademik Veri Yönetim Sistemi
BMC Oral Health, cilt.25, sa.1, 2025 (SCI-Expanded)
Background: Understanding the underlying causes of root canal treatment (RCT) failures allows clinicians to more correctly predict treatment outcomes, paving the path for better results. Aim: This study aimed to evaluate the effect of coronal restoration and periodontal status in teeth with failed RCT. Materials and methods: The present observational study examined 538 patients to evaluate potential risk factors associated with RCT failure in accordance with the inclusion criteria. Potential failure factors recorded included clinical signs and symptoms, smoking habits, radiological findings, the type and quality of coronal restorations, and periodontal parameters such as the gingival index (GI), periodontal index (PI), periodontal probing depth (PD), and clinical attachment loss (CAL). Univariate and multivariate logistic regressions were used to relate patient and treatment variables with the presence of apical periodontitis (AP) and the timing of RCT. Each association was evaluated by calculating the odds ratio (OR) and its 95% confidence interval (CI). Significance was evaluated at the p < 0.05 level. Results: The effect of sex, smoking, CAL, age, RCT adequacy, coronal restoration quality, PI, GI, and PD, on RCT time was found to be statistically significant (p < 0.05). According to the multivariate analysis, being male (95% CI 1.061–2.210, OR 1.531, p = 0.023), smoking (95% CI 0.313–0.961, OR 0.548, p = 0.036), CAL (95% CI 1.0.384–0.890, OR 0.585, p = 0.012), and age (95% CI 0.955–0.978, OR 0.966, p = 0.001), were found to increase the risk of being under 5 years by 1.531, 0.548, 0.585, and 0.966 times, respectively. The effects of PI, GI, PD, CAL and age on the presence of AP were found to be statistically significant (p < 0.05). PI (OR: 2.032, 95% CI: 1.391–2.068, p = 0.001) and age (OR: 1.021, 95% CI: 1.004–1.038, p = 0.015) were found to significantly increase the risk of having AP. Conclusion: The findings of this study highlight the critical role of periodontal health in endodontic outcomes and underscore the potential benefits of educating patients about how smoking adversely affects the prognosis of RCT, which could enhance its long-term success.