Study on Establishing Spatial Position of Multiple Implants by Scanning Model Combined with Reverse Engineering Technology.

doi:10.13701/j.cnki.kqyxyj.2022.09.006

Abstract

Abstract: Objective: To establish spatial information of multi-implants in the cast model of edentulous patients, and to lay a foundation for comparing the spatial location of the same multi-implants obtained by different impression methods. Methods: The cast of the upper jaw with 6 implants was obtained by using a custom tray elastomeric impression procedure after splinting the impression copings at room temperature (23 ℃). The cast was scanned by a model scanner and a reference model database was outputted as the triangular grid data (stereolithography, STL). Results: In the Geomagic Control X software, the three dimension feature extraction of single and six abutment replica’s base plane, centerline, and center point under the same coordinate system were determined respectively. The discrepancy of spatial position of multiple implants between cast model and CBCT were conducted by feature extraction. Conclusion: The position and angle deviation of the single and six implant’s location are determined by the model scanner and Geomagic Control X software, and our study contributes to compare the spatial position of the same multi-implants obtained by different impression methods.

Key words: edentulous, implantation, abutment plane, center line of implant, center point of implant, Geomagic

WU Yuwei, CAO Jia, HAN Fei, WEN Aonan, GAO Zixiang, LI Deli, TANG Zhihui, QIAN Jun, ZHAO Yijiao, WANG Yong. Study on Establishing Spatial Position of Multiple Implants by Scanning Model Combined with Reverse Engineering Technology.[J]. Journal of Oral Science Research, 2022, 38(9): 823-826.

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