Williams K R, Watson C J, Murphy W M, Scott J, Gregory M, Sinobad D
University of Wales, Cardiff Dental School, CF4 4XY.
Quintessence Int. 1990 Jul;21(7):563-70.
The effect of defined stresses on cantilevered prostheses attached to osseointegrated implants was assessed by finite element analysis. The effect of stress on a cantilever, consisting of a ductile alloy in contact with a brittle polymer, was demonstrated to be complex. The distribution of applied stresses also influenced the results. Possible fracture and distortion of both materials were demonstrated. Finite element analysis is a particularly useful system for predicting stress behavior and can be employed to produce an optimal prosthetic design that reduces the potential for clinical failure.
通过有限元分析评估了特定应力对附着于骨整合植入物的悬臂式假体的影响。结果表明，应力对由与脆性聚合物接触的韧性合金组成的悬臂的影响很复杂。施加应力的分布也会影响结果。两种材料都可能出现断裂和变形。有限元分析是预测应力行为的一种特别有用的系统，可用于设计出能降低临床失败可能性的最佳假体。
