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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: J Prosthodont. 2013 Jun 12;23(2):73–82. doi: 10.1111/jopr.12066

Figure 5.

Figure 5

Figure 5

Figure 5

A. SEM image showing fracture originating from occlusal area;

B. Image of critical flaw at higher magnification with view from mesio buccal occlusal area.

C. Fracture stress of 108.5 MPa in veneer determined from flaw size 2b (128 µm) and a (60 µm), Y (1.24) and KIc using σF = Y√c / KIC.