数字化椅旁CAD/CAM技术对种植冠桥修复体边缘密合度的影响  

Influence of digital chair-side CAD/CAM technology on the edge fit of implanted crown and bridge restoration

作　　者：乌玉红 王海志 齐长娥 郭鹏女 WU Yuhong;WANG Haizhi;QI Chang’e;GUO Pengnü(Stomatology Center,Affiliated Hospital of Chifeng College,Chifeng Inner Mongolia 024000;School of Stomatology,Chifeng College,Chifeng Inner Mongolia 024000,China)

机构地区：[1]赤峰学院附属医院口腔医学中心,内蒙古赤峰024000 [2]赤峰学院口腔医学院,内蒙古赤峰024000

出　　处：《临床与病理杂志》2022年第9期2200-2205,共6页Journal of Clinical and Pathological Research

基　　金：赤峰学院服务赤峰市经济社会发展应用项目(cfxyfc201870);赤峰学院2020年度大学生创新创业训练计划项目(DCXM2020004)。

摘　　要：目的:探讨数字化椅旁计算机辅助设计/计算机制作(computer aided design/computer aided manufacturing,CAD/CAM)技术对种植冠桥修复体边缘密合度的影响。方法:选取2019年2月至2021年2月在赤峰学院附属医院接受治疗并已完成2~3枚种植体植入且需实施桥联冠修复的120例患者为研究对象。依据随机数字表法分为A组与B组,每组60例。A组采用传统印模技术,B组采用数字化椅旁CAD/CAM技术。于1个月、6个月及12个月后比较两组修复体状况、修复牙牙龈指数(gingival index,GI)、龈沟出血指数(sulcus bleeding index,SBI)及修复体边缘密合度。结果:1个月、6个月及12个月后,B组边缘密合性、完整性、邻接松紧度明显均高于A组,差异均有统计学意义(均P<0.05);1个月、6个月及12个月后,B组GI指数、SBI指数均明显低于A组,差异均有统计学意义(均P<0.05);1个月、6个月及12个月后,B组患者的修复体内表面至A1、A2、A3、A4、A5处的距离均明显小于A组,差异均有统计学意义(均P<0.05)。结论:数字化椅旁CAD/CAM技术于种植冠桥修复中应用后修复体状况良好,且具有较好的边缘密合度。Objective: To investigate the influence of digital chair-side computer aided design/computer aided manufacturing(CAD/CAM) technology on the edge fit of implanted crown and bridge restoration. Methods: A total of 120 patients who had completed 2 to 3 implants and needed to perform crown and bridge restoration in our hospital from February 2019 to February 2021 were selected as the research subjects. According to the random number table method, they were divided into group A and group B, each group with 60 cases. Traditional impression technology was used for group A, and digital chairside CAD/CAM technology was used for group B. A?ter 1, 6, 12 months, the restoration status, restoration gingival index(GI), sulcus bleeding index(SBI), and edge fit of the restoration were compared between the 2 groups. Results: After 1, 6, and 12 months, the edge tightness, integrity and adjacency tightness of group B were significantly higher than those of group A, with statistical significance(all P<0.05). A?ter 1, 6, and 12 months, GI index and SBI index of group B were significantly lower than those of group A, with statistical significance(all P<0.05). A?ter 1, 6, and 12 months, the distances from the surface of the repaired body to A1, A2, A3, A4, and A5 in group B were significantly smaller than those in group A, with statistical significance(all P<0.05). Conclusion: After the application of digital chairside CAD/CAM technology in implant crown and bridge restoration, the restoration is in good condition and has good edge tightness.

关 键 词：种植冠桥修复 边缘密合度 计算机辅助设计 计算机制作 数字化 椅旁 

分 类 号：R783.3[医药卫生—口腔医学]