不同工作长度确定方法的体内评估。
An in vivo evaluation of different methods of working length determination.
作者信息
Mandlik Jyoti, Shah Nitin, Pawar Kalpana, Gupta Paras, Singh Sarita, Shaik Shoaib Ali
机构信息
Associate Professor, Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth Deemed University Dental College and Hospital, Pune, Maharashtra, India, e-mail:
出版信息
J Contemp Dent Pract. 2013 Jul 1;14(4):644-8. doi: 10.5005/jp-journals-10024-1378.
OBJECTIVE
The purpose of this in vivo study was to compare the ability of digital tactile, digital radiographic and electronic methods to determine reliability in locating the apical constriction.
MATERIALS AND METHODS
Informed consent was obtained from patients scheduled for orthodontic extraction. The teeth were anesthetized, isolated and accessed. The canals were negotiated, pulp chamber and canals were irrigated and pulp was extirpated. The working length was then evaluated for each canal by digital tactile sensation, an electronic apex locator (The Root ZX) and digital radiography. The readings were then compared with post-extraction working length measurements.
RESULTS
The percentage accuracy indicated that EAL method (Root ZX) shows maximum accuracy, i.e. 99.85% and digital tactile and digital radiographic method (DDR) showed 98.20 and 97.90% accuracy respectively.
CLINICAL SIGNIFICANCE
Hence, it can be concluded that the EAL method (Root ZX) produced most reliable results for determining the accurate working length.
目的
本体内研究的目的是比较数字触诊、数字放射成像和电子方法在确定根尖狭窄部位可靠性方面的能力。
材料与方法
从计划进行正畸拔牙的患者处获得知情同意。对牙齿进行麻醉、隔离并打开髓腔。疏通根管，冲洗髓腔和根管，并摘除牙髓。然后通过数字触诊、电子根尖定位仪（Root ZX）和数字放射成像评估每个根管的工作长度。然后将这些读数与拔牙后的工作长度测量值进行比较。
结果
准确率表明，电子根尖定位仪（EAL）方法（Root ZX）显示出最高的准确率，即99.85%，数字触诊和数字放射成像方法（DDR）的准确率分别为98.20%和97.90%。
临床意义
因此，可以得出结论，电子根尖定位仪（EAL）方法（Root ZX）在确定准确的工作长度方面产生了最可靠的结果。
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