锥形束CT在上颌磨牙根分叉病变诊断中的准确性分析  

Accuracy of cone beam computed tomography in assessing maxillary molar furcation involvement

作　　者：赵海燕 王楠[1] 丁一[2] 郑海英 钱君荣[1] Zhao Haiyan;Wang Nan;Ding Yi;Zheng Haiying;Qian Junrong(Dept.of Stomatology,Affiliated Hospital of Jining Medical University,Jining 272100,China;State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Dept.of Periodontology,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,China)

机构地区：[1]济宁医学院附属医院口腔科,济宁272100 [2]口腔疾病研究国家重点实验室,国家口腔疾病临床医学研究中心,四川大学华西口腔医院牙周科,成都610041

出　　处：《华西口腔医学杂志》2020年第3期270-273,共4页West China Journal of Stomatology

基　　金：山东省医药卫生计划项目(2016WS0179);济宁医学院附属医院“苗圃”科研计划项目(MP-2015-006)。

摘　　要：目的评价锥形束CT (CBCT)在上颌磨牙根分叉病变诊断中的准确性。方法纳入经过基础治疗后需行根分叉区翻瓣手术的慢性牙周炎患者15例,共31颗上颌磨牙,术前进行临床探诊和CBCT检查,比较术中探诊与临床探诊和CBCT检查所得根分叉病变分度的一致性。结果临床检查与术中检查所得根分叉病变分度在颊侧、近颊腭侧、远颊腭侧一致性均较差,κ值均小于0.4,完全一致率仅为42.0%,多数病变被高估(24.7%)或者被低估(33.3%)。而CBCT与术中检查所得根分叉病变分度一致性较高(κ=0.831),完全一致率高达88.2%,仅有少数病例被高估(3.2%)或者低估(8.6%),不同位置一致性比较结果为颊侧(κ=0.896)>远中腭侧(κ=0.822)>近中腭侧(κ=0.767)。结论 CBCT可以很好地反映上颌磨牙根分叉病变的水平骨缺损情况。Objective This study aimed to assess the accuracy of cone beam computed tomography(CBCT)in detecting furcation involvement(FI)in maxillary molars.Methods Thirty-one maxillary molars of 15 patients with generalized chronic periodontitis considered for furcation surgery were assessed.Clinical examination and CBCT were performed,and the FI degree was evaluated.Clinical and CBCT-based FI assessments were compared with intrasurgical data.Results The agreement between clinical and intrasurgical assessments was weak in all sites,with a kappa of less than 0.4;the complete,overestimated,and underestimated agreement percentages were 42.0%,24.7%,and 33.3%,respectively.The agreement between the CBCT and intrasurgical assessments was strong,with a kappa of 0.831;the complete,overestimated,and underestimated agreement percentages were 88.2%,3.2%,and 8.6%,respectively.The agreement between both assessments was the highest in the buccal furcation entrance(κ=0.896),followed by that in the distopalatal(κ=0.822)and mesiopalatal(κ=0.767)furcation entrances.Conclusion CBCT images demonstrated high accuracy in assessing the horizontal bone loss of FI in maxillary molars.

关 键 词：锥形束CT 根分叉病变 上颌磨牙 

分 类 号：R445[医药卫生—影像医学与核医学]