Bioinspired design of dental multilayers
Bioinspired design of dental multilayers
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DOI：
10.1007/s10856-006-0662-0
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发表时间：
2007-01-01
影响因子：
3.7
通讯作者：
Soboyejo, W. O.
中科院分区：
文献类型：
--
作者：
Huang, M.;Wang, R.;Soboyejo, W. O.
本文考虑利用仿生功能梯度结构设计更能抵抗亚表面裂纹成核的牙科多层材料。不像现有的牙冠修复体会引起高应力集中，功能分级层（在牙冠材料和连接它们与牙本质之间）被证明可以显著降低应力并改善临界裂纹尺寸。特别的灵感来自与牙本质-牙釉质交界处（DEJ）梯度分布相关的低应力浓度。这种功能分级结构的含义也讨论了牙齿修复体的设计。
This paper considers the use of bioinspired functionally graded structures in the design of dental multi-layers that are more resistant to sub-surface crack nucleation. Unlike existing dental crown restorations that give rise to high stress concentration, the functionally graded layers (between crown materials and the joins that attach them to dentin) are shown to promote significant reductions in stress and improvements in the critical crack size. Special inspiration is drawn from the low stress concentrations associated with the graded distributions in the dentin-enamel-junction (DEJ). The implications of such functionally graded structures are also discussed for the design of dental restorations.