Biomechanical Performance of Mandibular Molars with Deep Mesio-Occlusal-Distal Cavities Rehabilitated with Horizontal Posts: A 3D Finite Element Analysis

Figure 7

(a) The stress analysis of the 1 mm horizontal postrestored with posterior composite shows stress concentration on the whole buccal surface, including the functional cusps; (b) the stress analysis of the 1.5 mm horizontal postrestored with posterior composite shows stress concentration on the whole buccal surface, including the functional cusps. The magnitude of stresses is more than that of 1 mm; (c) the stress analysis of the 2 mm horizontal postrestored with posterior composite shows stress concentration on the whole buccal surface, including the functional cusps. The lingual cusps also show an increased concentration of stress. The magnitude of stresses is less than that of 1 or 1.5 mm horizontal posts.

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(b)

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