摘要
目的:比较种植体在上颌骨复合体前、中、后3个部位,在垂直和水平载荷下的应力分布,讨论种植体在上颌骨复合体中的生物力学行为。方法:采用三维有限元法。结果: 种植体在上颌骨复合体内,加载后,上颌骨复合体各部位应力均较小,较加载部位和种植体内应力小。上颌骨复合体前、中、后3个种植体比较,种植体和上颌骨复合体应力后牙大于尖牙大于前牙。结论:上颌骨复合体具有良好的使集中受力分散的作用,上颌骨复合体内种植具有良好的生物力学可行性。
Objective: To compare the stress distribution of implant in maxillary complex in anterior, medium and posteriorregion under vertical and horizontal loading.Methods:Three-dimensional finite element analysis method was used.Results: The stresses of implant in maxilllary complepx were smaller than the stresses in implant and the loadingarea.Comparing of the implant in anterior, medium and posterior region in the maxillary complex , stress order implantand maxillary complex was obtained as follows: biggest in posterior teeth, bigger in the canines and least in incisors.Conclusions: Maxillary complex possesses good function to scatter the converging force. Implant in maxillary complex isavailability for good biomechanism.
出处
《口腔颌面修复学杂志》
2002年第1期8-11,共4页
Chinese Journal of Prosthodontics
关键词
上颌骨
种植体
三维有限元法
应力分析
生物力学
implant
maxillary complex
three-dimensional
finite element method
stress analysis
