计算机辅助设计与制造高嵌体修复牙体缺损的效果评价  

Evaluation of the Effect of Computer-Aided Design/Computer-Aided Manufacturing Onlay Restorations on Dental Defects

作　　者：黄珊珊[1] 韩群超[1] 佘睿[1] 杨帆[1] 龙艳华 Huang Shanshan;Han Qunchao;She Rui;Yang Fan;Long Yanhua(Department of Endodontics,The Affiliated Stomatology Hospital of Kunming Medical University,Kunming 650000,China)

机构地区：[1]昆明医科大学附属口腔医院牙体牙髓病科,昆明650000

出　　处：《成都医学院学报》2025年第1期62-65,共4页Journal of Chengdu Medical College

基　　金：云南省教育厅科学研究基金(No:2023Y0664)。

摘　　要：目的观察计算机辅助设计与制造(CAD/CAM)高嵌体修复牙体缺损的效果。方法选取2021年9月至2023年9月于昆明医科大学附属口腔医院牙体牙髓病科收治的100例后牙牙体缺损(PTD)患者为研究对象,采用随机数字表法将其分对照组(采用传统印模全瓷冠修复)和试验组(采用CAD/CAM高嵌体修复),每组50例(50颗)。比较两组单颗牙备牙时间、调(牙合)时间、修复效果、牙龈状况、咀嚼功能和并发症。结果试验组单颗牙备牙时间、调(牙合)时间、并发症总发生率少(或低)于对照组(P<0.05),边缘适合性、固位、牙龈健康、颜色匹配、外形、继发龋、修复体折裂成功率高于对照组(P<0.05)。修复后两组菌斑指数、牙龈指数较修复前低(P<0.05),且试验组低于对照组(P<0.05)。修复后两组咀嚼效率、咬合力较修复前提高(P<0.05),且试验组高于对照组(P<0.05)。结论CAD/CAM高嵌体修复PTD,可缩短单颗牙备牙时间、调(牙合)时间,改善牙龈状况,提升修复效果、咀嚼功能,且并发症少。Objective To observe the effect of computer-aided design/computer-aided manufacturing(CAD/CAM)onlay restorations on dental defects.Methods A total of 100 patients with single posterior tooth defect(PTD)admitted to the Department of Endodontics,the Affiliated Stomatology Hospital of Kunming Medical University from September 2021 to September 2023 were selected.The included 100 teeth were randomly divided into a control group(n=50,traditional press-molding all-ceramic crown restoration)and an experimental group(n=50,CAD/CAM onlay restoration)using a random number table method.The preparation time of a single tooth,occlusal adjusting time,restoration effect,gum condition,chewing function,and complications were compared.Results Compared with the control group,the experimental group exhibited shorter single tooth preparation time and occlusal adjustment time,lower overall incidence of complications,better marginal fit,fixation,gingival health,color matching,appearance,and secondary caries,and higher success rate of restoration fracture(P<0.05).After restoration,the plaque index and gingival index decreased in both groups,and the above indexes in the experimental group were lower than those in the control group(P<0.05).After restoration,the chewing efficiency and bite force increased in both groups,and the above indicators in the experimental group were higher than those in the control group(P<0.05).Conclusion CAD/CAM onlay restoration of PTD can shorten the single tooth preparation time and occlusion adjusting time,improve gum condition,enhance restoration effect and chewing function,and have fewer complications.

关 键 词：计算机辅助设计/计算机辅助制造 高嵌体修复 牙体缺损 修复效果 咀嚼功能 

分 类 号：R783.3[医药卫生—口腔医学]