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77
Figure.2 3D finite element models of centre incisor
А – dentin has completely been lost , В – dentin has partially been lost.
What is taken into account are parameters like the degree of crown destruction,
post materials, the shape of the post, lute cements, the degree of the dentin loss
at the coronal aspect of the canal.
The Mechanical properties of the system are investigated under oblique
loading. The point is that the model is under periodical loading imitating chewing.
That’s what is meant by fatigue technique. Finally, the teeth are damaged.
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