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Year : 2023  |  Volume : 20  |  Issue : 1  |  Page : 78

Stress distribution in endodontically treated single-rooted premolars restored with everstick post and sharonlay: A finite element analysis

Department of Conservative Dentistry and Endodontics, RKDF Dental College and Research Centre, Bhopal, Madhya Pradesh, India

Correspondence Address:
Dr. Bhavika A Bhavsar
Department of Conservative Dentistry and Endodontics, RKDF Dental College and Research Centre, Misrod, Bhopal - 462 026, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1735-3327.382131

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Background: The objective of the study is to compare stress distribution in a tooth restored with everstick post and sharonlay by means of three-dimensional finite element analysis (3D-FEA). Materials and Methods: An experimental original study was carried out in which two 3D-FEA models were constructed: (1) tooth restored with everstick post and metal ceramic crown and (2) tooth restored with sharonlay. The material properties were assigned and a force of 100N, 200N, 300N, and 400N was applied to the centric stop of the occlusal surface in centric occlusion at a 45° inclination in a linguolabial direction to the long axis of the tooth. Analysis was run and the stress distribution pattern was studied. As all stress distribution analysis was performed with the Ansys 11.0 software (Inventor AutoCAD 2010; Autodesk) program, the significance of P value or tests for statistical analysis was considered. Results: Sharonlay showed more total deformation, larger stress, and strain concentration than that of everstick post. Conclusion: Tooth restored with sharonlay showed greater chances of deformation than everstick post. It also showed maximum strain concentration near the apical portion of the remaining tooth structure and more stress in the cervical third of the postsystem than everstick post.

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