Saeidi Pour Reza, Randelzhofer Peter, Edelhoff Daniel, Prandtner Otto, Rafael Caroline Freitas, Liebermann Anja
Int J Oral Maxillofac Implants. 2017 May/Jun;32(3):e153-e160. doi: 10.11607/jomi.5562.
The goal of this study was to explore an innovative approach to single-tooth replacement using an individually custom-fabricated, root-analog, hybrid dental implant, in the esthetic zone, to avoid the microgap and micromovements between the implant and abutment. Moreover, the use of burs to prepare the implant recipient site is not necessary in this technique, reducing the bone removal, heating, and trauma. The process requires capturing accurate root geometry through combined computer-aided design/computer-assisted manufacturing (CAD/CAM) and a three-dimensional (3D) visualization (digital volume tomography [DVT]) of the tooth in situ, which might result in reduced remodeling after insertion. A good esthetic and functional outcome was obtained. The use of a root-shaped tooth analog implant might be in selected cases a viable alternative to current threaded cylindrical and cone-shaped implants. The new concept avoids the microgap between the implant and the abutment and reduces the trauma to the tissue and bone.
本研究的目的是探索一种创新方法，即在美学区域使用单独定制的、牙根模拟的混合牙种植体进行单颗牙替换，以避免种植体与基台之间的微间隙和微移动。此外，该技术无需使用车针来预备种植体植入位点，从而减少了骨去除、加热和创伤。该过程需要通过计算机辅助设计/计算机辅助制造（CAD/CAM）与牙齿原位的三维（3D）可视化（数字容积断层扫描[DVT]）相结合来获取精确的牙根几何形状，这可能会减少植入后的重塑。获得了良好的美学和功能效果。在某些特定情况下，使用牙根形状的牙模拟种植体可能是当前螺纹圆柱形和锥形种植体的可行替代方案。这种新概念避免了种植体与基台之间的微间隙，并减少了对组织和骨的创伤。
