应用CBCT评价牙周病正畸治疗中牙槽骨状态的价值  

The role of CBCT in evaluation of alveolar bone state during orthodontic-periodontal treatment

作　　者：马志贵[1] 樊林峰[2] 房兵[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔颌面外科,上海市口腔医学重点实验室,上海200011 [2]上海交通大学医学院附属第九人民医院·口腔医学院放射科,上海市口腔医学重点实验室,上海200011

出　　处：《上海口腔医学》2010年第2期113-117,共5页Shanghai Journal of Stomatology

基　　金：上海市科学技术委员会资助项目(08DZ2271100)~~

摘　　要：目的:应用锥形束CT(cone beam computed tomography,CBCT)评价正畸-牙周联合治疗中牙槽骨的状态。方法:选择牙周病正畸治疗患者20例,处于正畸治疗排齐整平阶段,平均6个月。应用CBCT自行设计定点方式,对治疗前、后前牙区牙槽骨密度和牙槽骨高度进行检测,采用SPSS16.0软件包对测量数据进行配对t检验,并行观察者内部和观察者之间的可信度评价。结果:牙周病患者正畸治疗中,牙槽骨密度的降低有显著性差异(P=0.02),牙槽骨高度变化无显著性差异(P=0.74)。不同检测时间和不同观察者间的牙槽骨密度和牙槽骨高度值,一致性检验结果示组内相关系数均在0.9以上,无显著差异。结论:CBCT可用于评价牙周病正畸治疗中牙槽骨的状态,自行设计的定点方法具有可行性和可重复性。PURPOSE：To evaluate the role of cone beam computed tomography （CBCT） in evaluation of alveolar bone state during orthodontic-periodontal treatment. METHODS：Twenty patients with periodontal disease seeking for orthodontic-periodontal therapy were selected. The first stage of orthodontics included alignment and leveling arches （treatment）,and the average period was 6 months. CBCT for anterior teeth was taken before and after treatment,and alveolar bone density and height were recorded with landmark identification designed by ourselves in this study. The data was analyzed with SPSS16.0 software package for paired t test and interclass correlations （ICC） assessments. RESULTS：Paired t test showed that the alveolar density was significantly reduced after treatment （P=0.02）and no significant change of alveolar height was observed before and after treatment （P=0.74）. The value of ICC was more than 0.9 for all intra-observer and interobserver assessments. CONCLUSIONS：The alveolar bone density decreased during orthodontic treatment and CBCT could be used in evaluation of alveolar bone state. The landmark identification designed by ourselves can offer consistent and reproducible data.

关 键 词：锥形束CT 牙槽骨骨密度 牙槽骨高度 

分 类 号：R781.4[医药卫生—口腔医学] R783.5[医药卫生—临床医学]