Cardelli P, Montani M, Gallio M, Biancolini M, Brutti C, Barlattani A
University of Roma "Tor Vergata" - Faculty of Dentistry, Department of Prosthodontics (President and Chief Prof. A. Barlattani).
Oral Implantol (Rome). 2009 Jan;2(1):3-10. Epub 2009 Dec 10.
The long-term success of an implant supported prosthesis depends on many variables. In addition to the osseointegration rules that are commonly acknowledged, a clinician should consider also the biomechanical concepts related to the manufacturing process of a prosthetic structure assembly and their effects on the bone/implant interface. These concepts are particularly important when the anatomical structures leads to angulate the prosthetic component with respect to the fixture. In this study the stress distribution on the bone and on the prosthetic components was evaluated by means of a Finite Element Analysis (FEA). The effect of abutment axis angle was investigated considering three different measures: 15°, 25° and 35°. The simulation of both 450N maximal biting and 100N functional forces, highlighted the stress trend, which suggests as a maximum limit to choose an abutment with an angulation of 25°.
种植体支持式修复体的长期成功取决于许多变量。除了普遍认可的骨结合规则外，临床医生还应考虑与修复结构组件制造过程相关的生物力学概念及其对骨/种植体界面的影响。当解剖结构导致修复部件相对于种植体成角时，这些概念尤为重要。在本研究中，通过有限元分析（FEA）评估了骨和修复部件上的应力分布。考虑了三种不同的角度测量值（15°、25°和35°）来研究基台轴角度的影响。对450N最大咬合力和100N功能力的模拟突出了应力趋势，这表明选择角度为25°的基台作为最大极限。
