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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Biomaterials. 2013 Aug 13;34(34):8650–8659. doi: 10.1016/j.biomaterials.2013.07.090

Figure 2.

Figure 2

Stress life fatigue behavior of the coronal dentin specimens. Each data point in these figures corresponds to failure of a single beam, and those with arrows identify beams that did not fail and the test was discontinued. (a) the stress life responses for the treated specimens (pH=5) before (uncorrected) and after correction for changes in the beam geometry that resulted from demineralization. Fatigue life models are presented for the distribution after correction. (b) A comparison of the fatigue life distributions for the control evaluated in HBSS (pH=7) and the lactic acid solution (pH=5). Note the reduction in fatigue life of the specimens subjected to lactic acid near 4 hours of exposure and thereafter.