Department of Dentomaxillofacial Radiology, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Islamic Republic of Iran.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Dec;114(6):e54-61. doi: 10.1016/j.oooo.2012.05.026. Epub 2012 Sep 12.
The objective of this study was to compare the sensitivity and reliability of cone-beam computed tomography (CBCT) and intraoral photostimulable phosphor (PSP) imaging plate for diagnosis of endodontic complications.
Seventy-two human mandibular teeth were used, including 24 incisors/canines, 24 premolars, and 24 molars. Three images were taken from each group of teeth with intraoral PSP, CBCT-NewTom, and CBCT-ProMax.
The sensitivity of PSP, CBCT-NewTom, and CBCT-ProMax was 76.39%, 80.56%, and 94.44% for detecting cast post deviation; 98.61%, 100%, and 100% for external root resorption; 86.11%, 31.94%, and 36.11% for fractured file; and 66.67%, 90.28%, and 86.11% for lateral root perforation respectively. The intertechnique reliability (kappa statistics) was 58.4% for the 2 CBCT techniques, 20.1% and 18.8% for CBCT-NewTom and CBCT-ProMax versus PSP respectively.
Given strengths and weaknesses of the techniques as well as the cost, CBCT is recommended as a complementary but not routinely used diagnostic method for endodontic complications not usually detected by conventional methods.
本研究旨在比较锥形束 CT（CBCT）和口内光激励磷光体（PSP）成像板诊断牙髓并发症的敏感性和可靠性。
本研究共纳入 72 个人类下颌牙齿，包括 24 颗切牙/尖牙、24 颗前磨牙和 24 颗磨牙。每组牙齿分别拍摄 3 张口内 PSP、CBCT-NewTom 和 CBCT-ProMax 图像。
PSP、CBCT-NewTom 和 CBCT-ProMax 对铸造桩偏斜的检测灵敏度分别为 76.39%、80.56%和 94.44%；对外吸收的检测灵敏度分别为 98.61%、100%和 100%；对折断器械的检测灵敏度分别为 86.11%、31.94%和 36.11%；对侧根管穿孔的检测灵敏度分别为 66.67%、90.28%和 86.11%。两种 CBCT 技术之间的技术间可靠性（kappa 统计）为 58.4%，CBCT-NewTom 和 CBCT-ProMax 与 PSP 之间的可靠性分别为 20.1%和 18.8%。
鉴于技术的优缺点以及成本因素，CBCT 被推荐作为常规方法未检出的牙髓并发症的补充诊断方法，但不常规使用。
