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Stress Distribution of PostCore Applications in Maxillary Central IncisorsDepartment of Restorative Dentistry and Endodontics Faculty of Dentistry, Gazi University, Ankara, Turkeysisyaman{at}gazi.edu.tr
Department of Prosthetic Dentistry Faculty of Dentistry, Gazi University, Ankara, Turkey
Department of Aerospace Engineering Middle East Technical University, Ankara, Turkey The purpose of this study was to evaluate the stress distribution in a maxillary central incisor restored with various postcore applications. The study used a three-dimensional finite element method. The tooth was assumed to be endodontically treated with a porcelain crown. Two different sizes of Flexi-post, Cera-post, and Composipost were compared for 200 N palatal and incisal loads. It was determined that, purely from the point of view of strength considerations, core material was determined to be of greater importance than post material or size. Higher elastic moduli of the posts resulted in lower stresses throughout the tooth.
Key Words: finite element analysis postcore
Journal of Biomaterials Applications, Vol. 18, No. 3,
163-177 (2004) |
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