CAD/CAM导板在牙种植备孔中的精度分析  

Accuracy of CAD/CAM Template for Implant Site Preparation

作　　者：王金生 徐良伟[2] 蒋晨波 许办[2] 邵利民 张菲菲[4] 

机构地区：[1]兰溪市人民医院口腔科,浙江金华321199 [2]浙江工业大学,浙江杭州310000 [3]兰溪邵小伟中医院口腔科,浙江金华321102 [4]浙江大学医学院附属第二医院口腔科,浙江杭州310009

出　　处：《口腔医学研究》2016年第11期1196-1199,共4页Journal of Oral Science Research

基　　金：兰溪市科技计划项目(编号:2014C04)

摘　　要：目的:通过CBCT扫描以及计算机辅助设计、制造技术(CAD/CAM)制作口腔种植导板,然后评价该类导板在手术备孔中的精度。方法:利用口腔锥形束CT(ConeBeamCT,CBCT)扫描6位患者的上下颌骨,获得颌骨数据后,利用医学种植软件和快速成型技术制作CAD/CAM导板。依靠导板植入24颗种植体,术后再次拍摄CBCT,配准术前、术后数据,测量种植体在预期位置上的偏离值。结果:种植体植入后颈部偏离值为(1.03±0.55)mm,顶端偏离值(1.19±0.56)mm,角度偏离值(3.12±2.64)°。结论:CAD/CAM种植导板能够有效地将设计方案转移到手术过程中,降低手术风险,获得较高精度,有较高的临床应用价值。Objective：To evaluate the accuracy of the CAD/CAM implant template based on CBCT data for dental implants preparation. Methods：Jaws from 6 patients were scanned using cone beam computed tomography（CBCT）.The CT data was used to fabricated CAD/CAM implant templates.Twenty-four implants were inserted in edentulous patients using CAD/CAM implant templates.All patients had CBCT scanning again after operation.Preoperative and postoperative computed tomographic images were compared,and the deviations between actual and planned implants were measured.Results：With the help of CAD/CAM implant templates,the neck deviation of the implant was 1.03±0.55 mm,apical deviation was 1.19±0.56 mm,and axis deviation was 3.12±2.64°.Conclusion：The CAD/CAM implant template can accurately transfer the preoperative design,reduce the risk of operation,and is worth for clinical use.

关 键 词：CAD/CAM 种植导板 精度 CBCT 

分 类 号：R783.6[医药卫生—口腔医学]