Evaluation of surgical placement accuracy of customized CAD/CAM titanium mesh using screws-position-guided template: A retrospective comparative study

作者全名："Chen, Dan; Zheng, Lingling; Wang, Chao; Huang, Yuanding; Huang, Haitao; Apicella, Antonio; Hu, Guiping; Wang, Lizhen; Fan, Yubo"

作者地址："[Chen, Dan; Zheng, Lingling; Wang, Chao; Hu, Guiping; Wang, Lizhen; Fan, Yubo] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn, Key Lab Biomech & Mechanobiol,Minist Educ,Sch Engn, Beijing, Peoples R China; [Huang, Yuanding] Chongqing Med Univ, Dept implantol, Stomatol Hosp, Chongqinig, Peoples R China; [Huang, Haitao] Dalian Med Univ, Dept Stomatol, Affiliated Hosp 1, Dalian, Peoples R China; [Apicella, Antonio] Univ Campania, Polytech Sch Engn & Base Sci, Adv Mat Lab, Aversa, Italy; [Wang, Chao] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn, Key Lab Biomech & Mechanobiol,Sch Engn Med, 37 Xueyuan Rd, Beijing 100083, Peoples R China"

通信作者："Wang, C (通讯作者)，Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn, Key Lab Biomech & Mechanobiol,Sch Engn Med, 37 Xueyuan Rd, Beijing 100083, Peoples R China."

来源：CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:000971889200001

JCR分区：Q1

影响因子：3.7

年份：2023

卷号：　

期号：　

开始页：　

结束页：　

文献类型：Article; Early Access

关键词：3D reconstruction; registration; alveolar bone augmentation; customized CAD; CAM titanium mesh; guided bone regeneration; placement accuracy

摘要："Background: Customized computer-aided-design/computer-aided-manufacturing (CAD/CAM) titanium meshes have been adopted for alveolar bone augmentation. But the inaccuracies between planned and created bone volume/contour are quite common, and the surgical placement of the customized mesh was considered as the first critical factor. However, the evaluation of surgical placement accuracy of customized mesh is currently lacking. Purpose: The aim of this study was to evaluate the accuracy of the surgical placement of customized meshes. Methods: A total of 30 cases, 20 without the screws-position-guided template and 10 with the screws-position-guided template, were included in this study. The cone beam CT (CBCT) data sets of pre- and postoperative were converted into 3D models and digitally aligned. Then the actual placement of customized mesh and retainer titanium screws was compared to the virtual one to assess the surgical placement accuracy of customized mesh. At least 6 months after surgery, a new CBCT was taken and converted into 3D models. Planned bone volume, created bone volume, vertical bone augmentation, healing complications rate, pseudo-periosteum rate, exposure rate, and infection rate were all evaluated. Results: The 3D digital reconstruction/registration analysis showed that the average difference between actual placement and planned one of customized mesh in positive and negative directions was 2.69 +/- 0.70 mm and -1.41 +/- 0.90 mm, respectively, without the screws-position-guided template. And the mean difference values between the actual and planned placement of the screws on the X and Y axes were 0.74 +/- 0.85 mm and 0.89 +/- 0.84 mm. In contrast, with the screws-position-guided template, the results were 2.38 +/- 0.69 mm and -1.30 +/- 1.13 mm. Accordingly, the mean difference values of screws were 0.76 +/- 0.84 mm and 0.94 +/- 0.72 mm. There was no statistical difference between the two groups, and the noninferiority of the control group compared to the test group was also confirmed by the comparative analysis. Conclusion: It can be concluded that there is a certain deviation between the planned surgical placement and actual one of customized mesh, and using screws-position-"

基金机构："National Natural Science Foundation of China [12072055, 11872135, 12172034, U20A20390]; Natural Science Foundation of Beijing [L212063]; Fundamental Research Funds for the Central Universities; 111 Project [B13003]"

基金资助正文："National Natural Science Foundation of China, Grant/Award Numbers: 12072055, 11872135, 12172034, U20A20390; Natural Science Foundation of Beijing, Grant/Award Number: L212063; Fundamental Research Funds for the Central Universities; 111 Project, Grant/Award Number: B13003"