Rouhani Armita, Aboutorabzadeh Seyed-MohammadReza, Reyhani Morteza, Kheirabadi Nasir, Mortazavi Samare, Navabi Sara
DDS, MSC. Department of Endodontics, Mashhad University of Medical Sciences, Faculty of Dentistry, Mashhad, Iran.
DDS. Dentist, Private Practice, Mashhad, Iran.
J Clin Exp Dent. 2023 Aug 1;15(8):e605-e611. doi: 10.4317/jced.60282. eCollection 2023 Aug.
This study aimed to measure the prevalence of untreated root canals and periapical lesions in endodontically treated teeth using cone-beam computed tomography (CBCT) and their association with the coronal seal.
This cross-sectional study assessed CBCT images of studied patients alongside documented information from their dental examinations. The assessment method for analyzing CBCT images after including endodontically treated teeth was the presence of missed canals, and periapical lesions were analyzed in three dimensions.
The evaluations from 772 teeth demonstrated that 89.4% of teeth had the proper coronal seal, 13.3% owned missed root canals, and 29.4% had periapical lesions. Most untreated canals belonged to maxillary first molars (71.8%) and mandibular lateral incisors (33.3%). The prevalence of periapical lesions was highest in mandibular lateral incisors (58.3%) and maxillary second molars (55.8%). In teeth with missed canals, the most periapical lesions were observed in the first premolars of both jaws. In teeth with the lack of proper coronal seal, the periapical lesions were observed in 55.6% of teeth with untreated root canals.
The results revealed a high prevalence of missed canals and periapical lesions in endodontically treated teeth in our study population. Untreated Root Canals, Periapical Lesions, 3-D Dental Imaging, Dental Treatment Failure.
本研究旨在使用锥形束计算机断层扫描（CBCT）测量根管治疗牙齿中未治疗根管和根尖周病变的患病率及其与冠部封闭的关系。
本横断面研究评估了研究患者的CBCT图像以及来自其牙科检查的记录信息。纳入根管治疗牙齿后分析CBCT图像的评估方法是遗漏根管的存在情况，并且对根尖周病变进行三维分析。
对772颗牙齿的评估表明，89.4%的牙齿有合适的冠部封闭，13.3%的牙齿有遗漏根管，29.4%的牙齿有根尖周病变。大多数未治疗的根管属于上颌第一磨牙（71.8%）和下颌侧切牙（33.3%）。根尖周病变的患病率在下颌侧切牙（58.3%）和上颌第二磨牙（55.8%）中最高。在有遗漏根管的牙齿中，在上下颌第一前磨牙中观察到的根尖周病变最多。在缺乏合适冠部封闭的牙齿中，55.6%有未治疗根管的牙齿出现了根尖周病变。
结果显示在我们的研究人群中，根管治疗牙齿中遗漏根管和根尖周病变的患病率很高。未治疗根管、根尖周病变、三维牙科成像、牙科治疗失败。
