单侧齿槽嵴裂骨缺损体积测定的研究  

Volumetric measurement of alveolar bone defect

作　　者：刘静 王永前 杜奉舟 陈树秀 李秉航 李海东 宋涛 吴镝 尹宁北 Liu Jing;Wang Yongqian;Du Fengzhou;Chen Shuxiu;Li Binghang;Li Haidong;Song Tao;Wu Di;Yin Ningbei(Plastic Surgery Hospital,Chinese Academy of Medical Sciences,Peking Union Medical College,Beijing 100144,China)

机构地区：[1]中国医学科学院北京协和医学院整形外科医院唇腭裂中心,北京100144

出　　处：《中华整形外科杂志》2018年第7期546-549,共4页Chinese Journal of Plastic Surgery

基　　金：北京市科学技术委员会“首都临床特色应用研究”专项资助课题（Z151100004015138）

摘　　要：目的探讨齿槽嵴裂患者上颌骨质缺损的测定方法。方法对2015年7月至2016年12月收治的26例9-12岁单侧齿槽嵴裂患者颅面部进行CT扫描，将CT数据分别通过3D打印和计算机辅助工程软件进行处理。在3D打印模型上，使用橡皮泥填充缺损，模拟齿槽骨移植物，并通过排水法测量其体积；在计算机辅助工程软件中，通过镜像-翻转技术求得骨质缺损的体积。结果3D打印模型获得的模拟移植物的平均体积是1．61ml，计算机辅助工程软件计算得到的平均骨缺损体积为1．60ml。2种方法求得的体积差异从-0．34ml到0．54ml。配对t检验显示应用2种方法得到的体积值之间差异无统计学意义。结论9-12岁的单侧齿槽嵴裂患者上颌骨缺损体积约为1．6ml。计算机辅助工程软件的镜像．翻转技术与在3D打印模型测定上颌骨质缺损体积同样准确，可作为测量上颌骨质缺损的可靠方法。Objective Explore the method for volumetric measurement of alveolar bone defect. Methods This study applied 2 advanced preoperative volume measurement methods： three-dimensional （3D） printing and computer-aided engineering （CAE）. Twenty-six unilateral alveolar cleft patients were enrolled in this study from April 2015 to December 2016. Their computed tomographic data were sent to 3D printing and CAE software. A simulated graft was used on the 3D-printed model, and the graft volume was measured by water displacement. The volume calculated by CAE software used mirror-reverses technique. Results The volume of alveolar bone defect could be detected by both methods. The average volume of the simulated bone grafts by 3D-printed models was 1.61 ml, a little higher than the mean volume of 1.60 ml calculated by CAE software. The difference between the 2 volumes was from - 0.34 ml to 0.54 ml. The paired Student t test showed no statistically significant difference between the volumes derived from the 2 methods. Conclusions This study demonstrated that the volume of alveolar bone defect is about 1.6ml in unilateral alveolar cleft patients aged 9 - 12 years. The mirror-reversed technique by CAE software is as accurate as the simulated operation on 3D-printed mode]s. These findings further validate the use of 3D printing and CAE technique in alveolar defect repairing.

关 键 词：三维打印 计算机辅助工程 齿槽骨缺损 体积 

分 类 号：R782[医药卫生—口腔医学]