Micromotion Improvement and Applications for Abutment-Implant System by Uniform Design and Kriging Interpolation

Abstract

Abstract:This study aimed to analysis the micromotion of the3i, Branemark and Semados dental implant systems with Zimmer implant model subjected to dynamic chewing loads. Micromotion of the three dental implant systems with basic dimensions was obtained using dynamic finite element analysis. From the results, the best abutment type had been selected. Six parameters of the implant were selected as the control factors to be improved. A uniform design method was employed to construct a set of experimental simulations. Next, for each experimental simulation, the dynamic finite element analysis package ANSYS/LS-DYNA was employed to simulate the behavior of the Zimmer dental implant model subjected to dynamic chewing loads and then determined the maximum micromotion of the cortical and cancellous bones. Finally, the best design of the experimental simulations that caused the smallest amount of micromotion was selected as the improved design version. Compared to the original design, which experienced micromotion of 33.39 m, the improved version experienced micromotion of 22.22 m. The rate of improvement was 33.45 %.Finally, the micromotion predicted system in commercial and engineering applications is constructed by Kriging interpolation method.