Üstün Yakup, Aslan Tuğrul, Şekerci Ahmet Ercan, Sağsen Burak
Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
J Endod. 2016 Sep;42(9):1334-7. doi: 10.1016/j.joen.2016.06.010. Epub 2016 Jul 30.
This study evaluates the endodontic working-length measurements in teeth with large periapical lesions and persistent intracanal exudate by using preexisting cone-beam computed tomography (CBCT). It compares the measurements with clinical root canal lengths determined by using 2 electronic apex locators.
All patients had undergone a CBCT scan independent of the present study and needed root canal treatment of at least 1 tooth visible in the field of view. Seventy-three teeth with single roots and canals were studied. An endodontist measured each root canal length with 2 different electronic apex locators. The measurements were repeated 3 times by using a digital caliper, and the mean was recorded. This mean was compared with the root canal length as measured on CBCT sections by an oral radiologist not involved in the endodontic treatment. The CBCT measurements were taken twice for analysis of intrarater reliability. The data were statistically analyzed.
There were no significant measurement differences between the methods used (P > .05).
In teeth with large periapical lesions and persistent intracanal exudate, measurement of the root canal length by using CBCT was as reliable as measurements that used apex locators.
本研究通过使用现有的锥形束计算机断层扫描（CBCT）评估患有大根尖周病变和根管内持续渗出液的牙齿的根管工作长度测量。它将这些测量结果与使用两种电子根尖定位仪确定的临床根管长度进行比较。
所有患者均已独立于本研究进行了CBCT扫描，并且需要对视野中至少一颗牙齿进行根管治疗。研究了73颗单根单管牙齿。一名牙髓病医生使用两种不同的电子根尖定位仪测量每个根管长度。使用数字卡尺重复测量3次，并记录平均值。将该平均值与未参与牙髓治疗的口腔放射科医生在CBCT切片上测量的根管长度进行比较。CBCT测量进行了两次，以分析测量者内部的可靠性。对数据进行统计学分析。
所用方法之间无显著测量差异（P>0.05）。
在患有大根尖周病变和根管内持续渗出液的牙齿中，使用CBCT测量根管长度与使用根尖定位仪测量一样可靠。
