数字化与传统全口义齿基托的适合性评价  

Evaluation of the trueness and tissue surface adaptation of digital and traditional complete denture bases

作　　者：林瑞 周曼莉 闵敏 张献芳 钱文昊 LIN Rui;ZHOU Man-li;MIN Min;ZHANG Xian-fang;QIAN Wen-hao(Dental Disease Control Institute,Xuhui District.Shanghai 20032,China)

机构地区：[1]徐汇区牙病防治所,上海200032

出　　处：《上海口腔医学》2024年第5期471-475,共5页Shanghai Journal of Stomatology

基　　金：上海市徐汇区牙病防治院级课题(SHXYF201901)。

摘　　要：目的:通过数据收集和分析,对比切削全口义齿、三维打印全口义齿与传统全口义齿基托组织面的适合性。方法:随机选取3例全口义齿石膏模型,每个模型均制作3副全口义齿—切削义齿、三维打印义齿和传统全口义齿,分为试验组(切削组、打印组)和对照组(传统组)。口外光学扫描模型组织面和全口义齿基托组织面,获得三维数字化模型和三维数字化组织面。通过三维逆向工程软件Geomagic Studio12.0,将获得的模型与组织面信息拟合。在全口义齿中选取8个区域,每个区域随机选取10个点,计算每个区域的偏差绝对值平均值,代表该区的平均偏差值(mean deviation,Dm)。采用SPSS 22.0软件包对3组共24个区域的Dm进行统计学分析。结果:切削组偏差值为(0.056±0.025)mm,打印组偏差值为(0.103±0.038)mm,传统组偏差值为(0.096±0.039)mm,3组偏差值差异显著(P<0.05)。切削组适合性优于传统组(P<0.05),打印组适合性劣于传统组,但差异无统计学意义(P>0.05)。结论:切削全口义齿的适合性优于传统义齿,三维打印全口义齿适合性相比传统全口义齿无明显优势。PURPOSE:To compare the trueness of the tissue surface of the complete denture base among the digital cutting complete denture,the digital 3D printing complete denture and the conventional complete denture.METHODS:Three edentulous patients were selected,and three complete dentures were made for each case.Cutting dentures(cutting group),3D printed dentures(printing group)were considered as the experimental groups,traditional dentures(traditional group)were considered as the control group.The tissue surface of complete denture model and denture base were scanned and their 3D data were obtained.Geomagic software was used to fit the model information with the tissue surface information of the denture base.A total of 8 regions were selected in the upper and lower complete dentures,and 10 points were randomly selected in each region.The average value of the absolute deviation value(Dm)of each region was calculated.SPSS 22.0 software package was used to analyze the Dm in a total of 24 regions of the three pairs of dentures.RESULTS:The absolute mean deviation was(0.056±0.025)mm in the cutting group,(0.103±0.038)mm in the printing group,and(0.096±0.039)mm in the traditional group,which were significantly different among the three groups(P<0.05).The trueness of the ablation group was better than that of the conventional group,and the difference was significant(P<0.05).The trueness of the printing group was worse than that of the traditional group,and the difference was not significant(P>0.05).CONCLUSIONS:The trueness of cutting dentures is better than that of traditional dentures,while the trueness of 3D printed dentures is not significantly better than that of traditional dentures.

关 键 词：全口义齿 数字化义齿 适合性 

分 类 号：R783.6[医药卫生—口腔医学]