A photoelastic study of stress concentrations produced by retention pins in amalgam restorations.
作者信息
Dhuru V B, McLachlan K, Kasloff Z
出版信息
J Dent Res. 1979 Mar;58(3):1060-4. doi: 10.1177/00220345790580030601.
PMID:370168
Abstract
Photoelastic models of pin-amalgam restorations were constructed to simulate different pin-dentin-amalgam relationships. The stress-raising effect of a pin is influenced by the axial stiffness of the pin and its capability of bonding with the amalgam. The stress produced by a very stiff non-bonded pin could cause failure of the restoration.
摘要
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