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Journal of Medical Sciences
Year: 2009  |  Volume: 9  |  Issue: 3  |  Page No.: 156 - 160

Evaluation of Fracture Resistance in Endodontically Treated Teeth Through Four Restorative Methods: An in vitro Study

N. Asadzadeh, M. Seify and R. Heidarian    

Abstract: The purpose of this study is to compare the fracture strength of anterior teeth through four different methods. In this experimental study 24 central maxillary teeth were used. The crown of them was cut. They were divided into four groups. After preparing a post space, in the first group the FRC post with composite core used and then celluloid crown was used. In the second group, as the first one with this difference the crown was metal. In the third group the dentatus pin with composite core used and the crown was formed by celluloid. In the fourth group the way was as the third one but a metal crown issued. The examples mounted in an acrylic blocks and were pressed in Instron machine, as well the press power was calculated. The results were analyzed with one-way variance and Duncan test. There was no significant relationship between the break points of the four groups (p = 0.44). The most amount of fracture load was for the first group and the lowest place was for the second group. Crown doesn't provide more strength for tooth in this condition.

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