数控机床金属导板辅助无牙颌种植的实验研究  

The experimental study on edentulous mandible implantation assisted by metal surgical guides based on computer numerical control technology

作　　者：徐楚[1,2] 吴补领[2] 李鉴轶[1] 白宇哲 宋颖[1] 马立超[4] 唐雷[1] 

机构地区：[1]南方医科大学人体解剖学教研室广东省医学生物力学重点实验室,广州510515 [2]南方医科大学口腔医学院,广州510515 [3]中国人民解放军总医院第一附属医院四肢修复重建外科,北京100048 [4]南方医科大学附属南方医院影像中心,广州510515

出　　处：《中国临床解剖学杂志》2016年第3期289-292,共4页Chinese Journal of Clinical Anatomy

基　　金：国家自然科学基金重大项目(61190120;61190122;61190123)

摘　　要：目的探讨利用数控机床(computer numerical control,CNC)制造个性化下颌无牙颌金属种植导板的新方法。方法 8具下颌无牙颌标本随机分为两组,分别运用CNC技术加工出金属导板、运用快速成型(rapid prototyping,RP)技术加工出树脂导板并测量其在体外实验中辅助置钉的精确性。结果CNC与RP导板在下颌骨中部水平面上的绝对偏差分别为(0.23±0.14)mm、(1.01±0.27)mm,差异有统计学意义(P=0.000);在矢状面上分别为(0.30±0.24)mm、(0.95±0.24)mm,差异有统计学意义(P=0.000)。结论在体外实验中,CNC金属下颌无牙颌种植导板辅助种植精确性高于RP树脂导板。Objective To explore a new method for manufacturing customized edentulous mandible metal implant surgical guides using computernumerical control （CNC） machines. Methods Eight corpse edentulous mandibles were randomly divided into two groups, CNC metal guides and rapid prototyping （RP） resin guides were manufactured respectively. All guides were used to assist edentulous mandible implantations to analyze the accuracy in vitro. Results The absolute deviation on horizontal plane was （0.23±0.14） mm in the CNC group and （1.01±0.27） mm in the RP group, respectively, between which the difference was significant （P=0.000）. The absolute deviation on sagittal plane was （0.30±0.24） mm in the CNC group and （0.95 ± 0.24） mm in the RP group, respectively, between which the difference was significant （P=0.000）. Conclusions In vitro implantations, CNC surgical guides assisted implantations have higher accuracy than RP guides.

关 键 词：数控机床 下颌无牙颌 种植导板 计算机辅助设计 

分 类 号：R783.6[医药卫生—口腔医学]