Accelerated Fatigue Model for Predicting Composite Restoration Failure

B. Yang, W. Aregawi, R. Chen, L. Zhang, Y. Wang & A.S.L. Fok
An empirical method is proposed to predict the clinical performance of resin composite dental restorations by using laboratory data derived from simple specimens subjected to chemical degradation and accelerated cyclic fatigue. Three resin composites were used to fill dentin disks (2-mm inner diameter, 5-mm outer diameter, and 2 mm thick) made from bovine incisor roots. The specimens (n = 30 per group) were aged with different durations of a low-pH challenge (0, 24, and 48...
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