Abstract
Aim and Objectives:This study assessed, through finite element analysis, the biomechanical behavior of an implant system using the All-on-Four® technique with nickel–chromium (M1) and polyether ether ketone (PEEK) bars (M2).Materials and Methods:Implants and components were represented in three-dimensional (3D) geometric models and submitted to three types of load: axial, oblique, and load on all teeth. The 3D models were exported to a computer-aided design-like software such as Solidworks 2016 (Dassault Systemes, Solidworks Corps, USA) for editing and Nonuniform Rational Basis Splines parametrization.Results:Data were analyzed according to system's areas of action: peri-implant bone, implant, intermediates, intermediates’ screws, prostheses’ screws, and bars. Largest peak stress was shown in M2.Conclusion:PEEK is a promising material for use in dentistry; however, further studies are necessary to evaluate its performance.
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