The effects of bone density and crestal cortical bone thickness on micromotion and peri-implant bone strain distribution in an immediately loaded implant: a nonlinear finite element analysis

• DOI: 10.5051/jpis.2016.46.3.152
• Publication Date: 2016-06-29T10:23:28Z
• Authors: Tsutomu Sugiura; Kazuhiko Yamamoto; Satoshi Horita; Kazuhiro Murakami; Sadami Tsutsumi; Tadaaki Kirita
• Keywords: 03 medical and health sciences; 0302 clinical medicine; Research Article

Purpose: This study investigated the effects of bone density and crestal cortical thickness at implant-placement site on micromotion (relative displacement between implant bone) peri-implant strain distribution under immediate-loading conditions.Methods: A three-dimensional finite element model posterior mandible with an was constructed.Various parameters were simulated, including low or high cancellous density, thicknesses ranging from 0.5 to 2.5 mm.Delayed-and conditions simulated.A buccolingual oblique load 200 N applied top abutment.Results: The maximum extent approximately 100 μm in low-density models, whereas it 30 high-density models.Crestal significantly affected models.The minimum principal by same degree for both delayed immediate loading.In models loading, decreased increase thickness.Conclusions: Cancellous may be a critical factor avoiding excessive immediately loaded implants.Crestal simulations loading.