中国组织工程研究与临床康复2011，Vol.15Issue(48)：8960-8963,4.DOI:10.3969/j.issn.1673-8225.2011.48.008
功能梯度牙种植体三维有限元力学分析与结构优化
Structural optimization and three-dimensional finite element analysis of functionally graded dental implants
摘要
Abstract
BACKGROUND: The graded design of the titanium and bioceramics will enhance the early osseointegration and maintain thelong-term stability.OBJECTIVE: To investigate the biomechanical behavior of functionally graded dental implant by using three-dimensional finiteelement method.METHODS: Three-dimensional elemental models of functionally graded dental implant and partial mandible were established.Three different elastic modulus graded change of functionally graded dental implant were designed: linear, exponential function,logarithmic function, with titanium implant as the control group. Three-dimensional element stress analysis was done by Abaqussoftware.RESULTS AND CONCLUSION: Compare to the control group, the stresses were reduced on every level of the I mplant and bonein the design of the functionally graded dental implant. From the top o the bottom of the implant, the stress on the surface of theimplant was reduced by 3% to 50%, while the stress on the implant/bone interface was reduced by 10% to 30%. Among the threegraded deigns, the most significant stress reduce was found in the exponential function design. The design of functionally gradeddental implant reduce the stresses in the implant/bone interface, the most significant difference is exponential function design.关键词
功能梯度牙种植体/三维有限元/应力/结构优化/生物力学分类
医药卫生引用本文复制引用
孙健,熊耀阳,李元超,孙芳,张富强..功能梯度牙种植体三维有限元力学分析与结构优化[J].中国组织工程研究与临床康复,2011,15(48):8960-8963,4.基金项目
上海市自然科学基金(09ZR1416600) （09ZR1416600）
上海交通大学医工结合项目(YG2009MS38) （YG2009MS38）
上海市重点学科(特色学科)建设项目(T0202) （特色学科）
上海市科学技术委员会资助项目(08DZ2271100). （08DZ2271100）
