Browsing by Author "Sahin, Pelinsu"

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Evaluation of Preoperative Apical Periodontitis, Treatment Indications, and Methods in Endodontically Treated Teeth: a Retrospective Study
(BMC, 2025) Gunduz, Huseyin; Bas, Zuleyha; Kilic, Asli Zeynep Kapoglu; Apari, Beyda Sevgul; Sahin, Pelinsu
Background This study evaluated the presence of preoperative apical periodontitis (AP) in endodontically treated teeth within a Turkish population, along with its causes, treatment methods, and the effectiveness of preventive and early intervention practices. Methods A retrospective analysis was conducted on 1,440 teeth from 1,055 patients treated at Van Y & uuml;z & uuml;nc & uuml; Y & imath;l University between 2021 and 2023. Preoperative panoramic and periapical radiographs and postoperative periapical radiographs were examined. Data recorded included patient demographics, treated tooth location, presence of preoperative AP, coronal restorations, reasons for treatment, treatment methods, and number of missing and endodontically treated teeth. Statistical analyses were performed using Chi-Square, Mann-Whitney U, Kruskal-Wallis, and Spearman correlation tests. Results The overall incidence of AP was reported as 28.7%. It was more frequently observed in the mandible than in the maxilla and in incisors compared to other tooth groups (p < 0.001). Caries was the primary reason for treatment in molars (81.5%), while periodontal disease was more common in incisors (p < 0.001). As age increased, the number of endodontically treated and missing teeth also rose (p = 0.019; p < 0.001). Teeth with crowns had a lower AP rate, while retreatments due to periodontal disease or previous root canal failures showed higher AP rates (p < 0.001). Conclusions The high AP rate and the predominance of caries and periodontal disease as treatment causes indicate insufficient application of preventive and early treatments. AP prevalence varied by jaw location, tooth group, coronal restoration and treatment method. This study provides epidemiological data on endodontically treated teeth and their association with AP. These findings emphasize the importance of early diagnosis, preventive measures, and effective treatment planning in preserving tooth survival.
Impact of Endodontic Treatment Quality on the Severity of Apical Periodontitis in Molars Teeth: a Retrospective CBCT Study
(Springer, 2025) Sahin, Pelinsu; Gunduz, Huseyin
Objectives This study investigated the relationship between root canal treatment quality and the development and severity of periapical radiolucency in maxillary and mandibular molars using cone beam computed tomography (CBCT). Methods A retrospective analysis was conducted on CBCT images of 396 maxillary and mandibular first and second molars. High-quality imaging records confirmed the absence of preoperative periapical lesions, with root canal treatments performed at least 4 years prior. The Periapical and Endodontic Status Scale was used to evaluate root canal filling length and homogeneity, coronal restoration seal, treatment complications, lesion size, relationship between root and lesion, and bone destruction location across axial, sagittal, and coronal CBCT sections. Results Endodontic treatment quality significantly influenced periapical lesion development, lesion size, relationship between root and lesion, and bone destruction location (p < 0.05). The prevalence of periapical radiolucencies was higher in teeth with short root canal fillings, inadequate filling homogeneity, insufficient coronal restorations, root perforations, or missed canals (p < 0.05). Larger lesions (> 5 mm) correlated with short root canal fillings, inadequate filling homogeneity, and inadequate restorations, which were also associated with cortical bone destruction and furcation involvement (p < 0.05). Apical radiolucency was more frequently observed in mandibular first molars than in second molars, with the lesions tending to be smaller, involving multiple roots, and located around the root structures. Conclusion This study highlights the critical influence of endodontic treatment quality on periapical lesion development, lesion size, relationship between root and lesion, and bone destruction location. Increased lesion severity compromises retreatment success, underscoring the importance of understanding periapical radiolucency risk factors for improved outcomes.