Method to Evaluate Inflammatory Root Resorption by Using Cone Beam Computed Tomography
Method to Evaluate Inflammatory Root Resorption by Using Cone Beam Computed Tomography
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DOI：
10.1016/j.joen.2009.08.009
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发表时间：
2009-11-01
影响因子：
4.2
通讯作者：
De Araujo Estrela, Cyntia Rodrigues
中科院分区：
文献类型：
--
作者：
Estrela, Carlos;Bueno, Mike Reis;De Araujo Estrela, Cyntia Rodrigues
前言：本研究的目的是评价一种使用锥束计算机断层扫描(CBCT)测量炎性牙根吸收(IRR)的方法。方法：根据牙根三级和根面对IRR部位进行分类，并在三维CBCT扫描的轴位、横位和切位面上用Plaimp软件测量IRR的伸展范围。采用5分(0~4)评分系统测量牙根吸收的最大范围。共对40名患者的48张根尖周片和CBCT扫描进行了评估。卡帕系数被用来评估观察者间的一致性，X(2)检验被用来确定成像方法之间的显著差异。将显著性水平设置为α=1%。结果：68.8%(83个根面)的X线片和100%(154个根面)的CBCT扫描发现了IRR(P<；.001)。95.8%的CBCT图像和52.1%的常规方法获得的图像IRR为1~4 mm(P<；.001)。结论：CBCT是评价IRR的有效方法，其诊断效果优于根尖周片。(J Endod 2009，35：1491-1497)
Introduction: The aim of this study was to evaluate a method to measure inflammatory root resorption (IRR) by using cone beam computed tomography (CBCT) scans. Methods: IRR sites were classified according to root third and root surface, and IRR extension was measured on the axial, transverse, and tangent views of 3-dimensional CBCT scans by using the Planimp software. A 5-point (0-4) scoring system was used to measure the largest extension of root resorption. A total of 48 periapical radiographs and CBCT scans originally taken from 40 patients were evaluated. The kappa coefficient was used to assess interobserver agreement and the chi(2) test to determine significant differences between the imaging methods. The level of significance was set at alpha = 1%. Results: IRR was detected in 68.8% (83 root surfaces) of the radiographs and 100% (154 root surfaces) of the CBCT scans (P < .001). The extension of IRR was >1-4 mm in 95.8% of the CBCT images and in 52.1% of the images obtained by using the conventional method (P < .001). Conclusions: CBCT seems to be useful in the evaluation of IRR, and its diagnostic performance was better than that of periapical radiography. (J Endod 2009,35: 1491-1497)