Journal of Conservative Dentistry
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Year : 2010  |  Volume : 13  |  Issue : 1  |  Page : 28-33

A comparative study of intra canal stress pattern in endodontically treated teeth with average sized canal diameter and reinforced wide canals with three different post systems using finite element analysis

Department of Conservative Dentistry and Endodontics, V.S. Dental College and Hospital, Bangalore, India

Correspondence Address:
N Shubhashini
Department of Conservative Dentistry & Endodontics. V. S. Dental College & Hospital, K. R. Road, V. V. Puram, Bangalore - 560 004
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.62639

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Study methodology: This is a comparative study of intra canal stress patterns in endodontically treated maxillary central incisor with: average sized canal diameter and wide canals reinforced with three different post systems - cast post and core, carbon fiber post, stainless steel post; restored with ceramic crown using finite element analysis (FEA). All the models were subjected to a force of 100N applied at 450 to the long axis of the tooth at the middle third of the palatal surface of the restored ceramic crown. Results: The FEA revealed that all the post systems showed maximum stress in the coronal and middle third of the root. Maximum stress was seen on the inner dentinal wall in case of stainless steel post followed by cast gold and carbon fiber post, both in the models without reinforcement as well as in the reinforced models.

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