Meijer H J, Starmans F J, Steen W H, Bosman F
Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen, The Netherlands.
Int J Prosthodont. 1994 May-Jun;7(3):271-9.
The difference in stress distribution in the bone around dental implants was determined under conditions where either two or four implants were placed in the interforaminal region of the mandible. The purpose was also to determine the influence of the height of the mandible on the stress distribution. The stress distribution around the implants was investigated using three-dimensional finite element models of the interforaminal region of two mandibles with two different stages of resorption. It was concluded that there is no reduction of the extreme principal stresses when the load is distributed over an increasing number of implants. There is a tendency for a gradual stress increase as mandibular height decreases.
在将两颗或四颗种植体植入下颌骨孔间区域的条件下，确定了牙种植体周围骨组织应力分布的差异。目的还在于确定下颌骨高度对应力分布的影响。使用两个处于不同吸收阶段的下颌骨孔间区域的三维有限元模型，研究了种植体周围的应力分布。得出的结论是，当载荷分布在越来越多的种植体上时，最大主应力不会降低。随着下颌骨高度降低，应力有逐渐增加的趋势。
