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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Dent Mater. 2015 Jul 10;31(9):1109–1118. doi: 10.1016/j.dental.2015.06.011

Figure 6.

Figure 6

Scanning electron micrographs detailing fatigue failure within selected bonded interface specimens. a) crack initiation on the unbroken side of a SB specimen (tensile side) at the resin composite/adhesive interface. Note the adjacent particulates (*). b) crack initiation on the unbroken side of a SBMP specimen within the hybrid layer. c) view of fracture surface for an SB specimen near the surface of maximum tensile stress. Note the crack begins within the resin and then continues within the resin composite. Resin adhesive (A) and Resin composite (C) are noted in each figure.