基于CBCT的种植牙模型定制医用辅助系统  

CBCT-based medical auxiliary system for customization of dental implant model

作　　者：胡茂承 陈颖[1] 葛云[1] 王仁飞 HU Maocheng;CHEN Ying;GE Yun;WANG Renfei(School of Electronic Science and Engineering,Nanjing University,Nanjing 210023,China;Hangzhou Dental Hospital,Hangzhou 310002,China)

机构地区：[1]南京大学电子科学与工程学院,江苏南京210023 [2]杭州口腔医院集团有限公司,浙江杭州310002

出　　处：《中国医学物理学杂志》2019年第11期1296-1301,共6页Chinese Journal of Medical Physics

基　　金：杭州市科技发展计划（20172016A08）

摘　　要：目的:设计开发基于CBCT的牙床结构重建以及种植牙定制的系统,并在重建的牙床结构中观察种植牙模型的参数和治疗效果。方法:开发一个种植牙数字化的软件,并将种植牙模型融合到CBCT牙床结构重建的环境中。根据临床的定制需求和手术规格的需求,设计个性化的种植牙模型。结果:该软件系统可基于DICOM格式数据,实现牙床结构的三维重建与显示,符合STL格式的种植牙数据的定制与三维显示和二维切面投影显示。医生可以对基台高度、颈部高度与角度、体部长度与直径进行手动调整并刷新显示调整后的种植牙三维结构,最后导出符合STL格式的种植牙数据。结论:该系统能在软件中完成对种植体的定制化制作和接口封装,不仅满足了临床的定制需求和手术规格的需求,同时显著提高了诊断和种植计划制定的周期和成本。Objective To design and implement a cone beam computed tomography(CBCT)-based system for construction of gum structure and customization of dental implant,determine the parameters of dental implant model by observing constructed gum structure,and evaluate its therapeutic effect.Methods Adental implant digitalization software was developed to integrate the dental implant model into the environment of CBCT gum reconstruction.According to the clinical customization requirements and the requirements of surgical specifications,a customized dental implant mode was designed.Results The proposed software system not only realized the three-dimensional reconstruction and display of the gum structure based on DICOM format data,but also achieved the customization of dental implant data in accordance with STL format,three-dimensional display and two-dimensional tangential projection.The abutment height,neck height and angle,length and diameter of the body could be manually adjusted,and the display of three-dimensional structure of the adjusted dental implant was updated.Finally,dental implant data in accordance with STL format were exported.Conclusion The proposed system can be used to complete the customized manufacturing and interface packaging of dental implant in the software,which not only meets the requrements of clinical customization and surgical specifications,but also significantly improves the cycle and cost of diagnosis and planting planning.

关 键 词：种植牙 CBCT 牙床结构 STL格式 

分 类 号：R318.6[医药卫生—生物医学工程] R782.1[医药卫生—基础医学]