Analysis of biomechanical behavior of endodontically treated anterior teeth (original) (raw)

Abstract

Objective: To evaluate the biomechanical behavior of endodontically treated anterior teeth by strain measurement, finite element analysis (FEA), and fracture resistance by varying the presence of ferrule and length of different endodontic posts. Methods: Eighty bovine incisor roots were selected and divided into 2 groups (n = 40): with ferrule of 2.0 mm, with no ferrule. These groups were divided into 4 subgroups (n = 10) varying the endodontic posts: fiberglass posts and cast post-and-cores, in lengths of 12 and 7 mm. All roots were restored with metal crowns. Five specimens from each group were subjected to strain-gage measurement. The fracture resistance was measured in mechanical testing machine with application of tangential load at an angle of 135 ° with the long axis of the tooth. Data were submitted to factorial analysis of variance. The failure pattern was analyzed in accordance with the degree of damage to the tooth structure.Tridimensional models of each experimental grou...

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