3D FEA of cemented glass fiber and cast posts with various dental cements in a maxillary central incisor

International Conference on Restorative & Alternative Medicine

October 24-25, 2016 Chicago, USA

Ahmed A Madfa

Thamar University, Yemen

Posters & Accepted Abstracts: Altern Integr Med

Abstract :

This study aimed to analyze and compare the stability of two dental posts cemented with four different luting agents by examining their shear stress transfer through the FEM. 83-dimensional finite element models of a maxillary central incisor restored with glass fiber and Ni-Cr alloy caste dental posts. Each dental post was luted with zinc phosphate, panavia resin, super bond C&B resin and glass ionomer materials. Finite element models were constructed and oblique loading of 100N was applied. The distribution of shear stress was investigated at posts and cement/dentine interfaces using ABAQUS/CAE software. The peak shear stress for glass fiber post models minimized approximately three to four times of those for Ni-Cr alloy cast post models. There was negligible difference in peak of shear stress when various cements were compared irrespective of post materials. The shear stress had same trend for all cement materials. This study found that the glass fiber dental post reduced the shear stress concentration at interfacial of post and cement/dentine compared to Ni-Cr alloy cast dental post.

Biography :

Email: ahmed_um_2011@yahoo.com