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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: Biomaterials. 2008 Sep 18;29(36):4847–4854. doi: 10.1016/j.biomaterials.2008.08.019

Figure 1.

Figure 1

Figure 1

Details pertaining to preparation and geometry of the inset compact tension (CT) specimens, and the fatigue crack growth testing of enamel and HAp.

(a) a section of 3rd molar and possible inset enamel, arrow indicates the expected direction of crack growth

(b) final geometry of inset enamel CT specimen (all dimensions in mm). The inset HAp specimen had the same geometry as the inset enamel specimen

(c) a typical fatigue crack growth response distinguishing the three regions of crack extension and the Paris Law parameters