高压蒸汽灭菌次数对钛基底-聚醚醚酮种植扫描杆扫描准确度的影响  

Effect of pressure steam sterilization times on the trueness of the polyetheretherketone⁃Ti scanbody scanning data

作　　者：谢馨[1] 李一鸣[2] 胡晓均 邓飞龙[1] Xie Xin;Li Yiming;Hu Xiaojun;Deng Feilong(Hospital of Stomatology,Guanghua School of Stomatology,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Stomatology,Guangdong Provincial Clinical Research Center of Oral Diseases,Guangzhou 510055,China;Department of Stomatology,The Seventh Affiliated Hospital,Sun Yat-sen University,Shenzhen 518107,China)

机构地区：[1]中山大学附属口腔医院,光华口腔医学院,广东省口腔医学重点实验室,广东省口腔疾病临床医学研究中心,广州510055 [2]中山大学附属第七医院口腔科,深圳518107

出　　处：《中华口腔医学研究杂志（电子版）》2024年第4期230-236,共7页Chinese Journal of Stomatological Research(Electronic Edition)

摘　　要：目的比较分析高压蒸汽灭菌次数对钛基底-聚醚醚酮(PEEK⁃Ti)种植扫描杆扫描准确度的影响。方法制备右上第一磨牙区内嵌有1个种植体口扫代型的上颌石膏模型1副,选择未经使用的PEEK⁃Ti种植体水平内锥形连接单牙扫描杆1个,以10 N·cm力矩安装到石膏模型的口扫代型上,作为本项研究的“参考模型”。使用三维牙颌模型扫描仪对参考模型进行重复扫描,获取“参考模型数据”;同时使用口内扫描仪对“参考模型”进行重复扫描,获取“未拆卸组-测试模型数据”;卸下扫描杆,分别经0、10、20、30、40、…、100次高压蒸汽灭菌后,再以10 N·cm力矩重新安装到石膏模型的口扫代型上进行重复扫描,并获取第0、10、20、30、40、…、100次高压蒸汽灭菌的测试模型数据,分别命名为:“灭菌组-测试模型数据(0、10、20、30、40、…、100)”,共对扫描杆进行了100次的高压蒸汽灭菌。将各组别数据导入三维测量软件(Geomagic Control X 2020,3D systems,美国),使用重复测量单因素方差分析进行分析评估,显著性水平设定为α=0.05。结果PEEK⁃Ti种植扫描杆随着灭菌次数的增加,线性误差值为4.3~7.0μm(F=1.363,P=0.210);角度误差值为0.101°~0.131°(F=1.339,P=0.222);三维误差(扫描杆一致性)值为10.8~12.0μm(F=1.532,P=0.141),各组间差异均无统计学意义。结论高压蒸汽灭菌次数对PEEK⁃Ti种植扫描杆的外形改变及其获取数字化印模数据的准确度没有显著影响,经高压蒸汽灭菌100次后的PEEK⁃Ti种植扫描杆仍可满足临床数字化印模的需求。Objective To compare and analyze the effect of pressure steam sterilization times on the trueness of the polyetheretherketone⁃Ti(PEEK⁃Ti)scanbody scanning data.Methods A maxilla stone master model with one analog at the right first molar was fabricated.A brand⁃new PEEK⁃Ti scanbody was installed with 10 N·cm torque onto the analog as the“reference model”.The reference model was then scanned with a dental laboratory scanner(D2000)to obtain the“reference model scanning data”.A total of 10 repeated scans were obtained with an intraoral scanner and referred as the group of“no scanbody unscrew”.The scanbody was reinstalled with consistent torques and obtained 10 repeated scans which referred as the group of“no sterilization”.The scanbody was reinstalled with consistent torques after each sterilization cycle repeated for 10 times,and 10 repeated scans were obtained which referred as the group of“(10,20,30,40,…,100)sterilization”.Totally 10 sterilization cycles were repeated.The files were imported into inspection software for assessment.Repeated⁃measures One⁃Way ANOVA was used to assess the values.The significance level was set atα=0.05.Results With the increase in the number of times of pressure steam sterilization,the linear deviation of the PEEK⁃Ti scanbody was 4.3⁃7.0μm(F=1.363,P=0.210);the angular deviation of the PEEK⁃Ti scanbody was 0.101°⁃0.131°(F=1.339,P=0.222);the congruence of the PEEK⁃Ti scanbody was 10.8⁃12.0μm(F=1.532,P=0.141).There was no statistically significant difference between groups.Conclusions For the PEEK⁃Ti scanbody tested in the present study,the sterilization did not significantly influence the trueness of single⁃implant digital impressions and the scanbody congruence.After 100 times of pressure steamsterilization,the trueness of the PEEK⁃Ti scanbody scanning data can still meet clinical needs.

关 键 词：灭菌 牙科印模技术 数字化技术 口腔扫描仪 扫描杆 准确度 

分 类 号：R78[医药卫生—口腔医学]