Park Su-Jung, Leesungbok Richard, Cui Taixing, Lee Suk Won, Ahn Su-Jin
Int J Prosthodont. 2017 Jul/Aug;30(4):367-169. doi: 10.11607/ijp.5179.
This in vitro study evaluated the reliability of a surgical guide with regard to different levels of operator surgical experience and implant site.
A stereolithographic surgical guide for epoxy resin mandibles with three edentulous molar sites was produced using a computer-aided design/computer-assisted manufacture (CAD/CAM) system. Two surgeons with and two surgeons without implant surgery experience placed implants in a model either using or not using the CAD/CAM surgical guide. Four groups were created: inexperienced surgeon without the guide (group 1); experienced surgeon without the guide (group 2); inexperienced surgeon with the guide (group 3); and experienced surgeon with the guide (group 4). Planned implants and placed implants were superimposed using digital software, and deviation parameters were calculated.
There were no significant differences in any of the deviation parameters between the groups when using the surgical guide. With respect to the implant sites, there were no significant differences among the groups in any parameter.
Use of the CAD/CAM surgical guide reduced discrepancies among operators performing implant surgery regardless of their level of experience. Whether or not the guide was used, differences in the anterior-posterior implant site in the molar area did not affect the accuracy of implant placement.
本体外研究评估了手术导板在不同手术经验水平的操作者以及不同种植部位方面的可靠性。
使用计算机辅助设计/计算机辅助制造（CAD/CAM）系统制作了一种用于环氧树脂下颌骨的立体光刻手术导板，该下颌骨有三个无牙磨牙部位。两名有种植手术经验的外科医生和两名无种植手术经验的外科医生分别在模型中使用或不使用CAD/CAM手术导板植入种植体。创建了四组：无导板的无经验外科医生（第1组）；无导板的有经验外科医生（第2组）；有导板的无经验外科医生（第3组）；有导板的有经验外科医生（第4组）。使用数字软件将计划植入的种植体和实际植入的种植体进行叠加，并计算偏差参数。
使用手术导板时各偏差参数在组间均无显著差异；在种植部位方面，各参数在组间也均无显著差异。
使用CAD/CAM手术导板可减少进行种植手术的操作者之间的差异，无论其经验水平如何。无论是否使用导板，磨牙区前后种植部位的差异均不影响种植体植入的准确性。
