Home Subscription Services

The Journal of Adhesive Dentistry
JAD Home Page
About the Editor
Editorial Board
Author Guidelines
Submission Form
Reprints / Articles
Quintessence Publishing: Journals: JAD


The Journal of Adhesive Dentistry

Edited by Prof. Dr. Roland Frankenberger, Prof. Bart Van Meerbeek

ISSN (print) 1461-5185 • ISSN (online) 1757-9988


January/February 2015
Volume 17 , Issue 1

Pages: 45-50
PMID: 25625138
DOI: 10.3290/j.jad.a33516
Share Abstract:

Effect of Punch and Orifice Base Sizes in Different Push-out Test Setups: Stress Distribution Analysis

Zanatta, Rayssa Ferreira / Barreto, Bruno de Castro Ferreira / Xavier, Tathy Aparecida / Versluis, Antheunis / Soares, Carlos Josť

Purpose: This study evaluated the influence of punch and base orifice diameters on push-out test results by means of finite element analysis (FEA).
Materials and Methods: FEA was performed using 3D models of the push-out test with 3 base orifice diameters (2.5, 3.0, and 3.5 mm) and 3 punch diameters (0.5, 1.0, and 1.5 mm) using MARC/MENTAT (MSC.Software). The image of a cervical slice from a root restored with a fiberglass post was used to construct the models. The mechanical properties of dentin, post, and resin cement were obtained from the literature. Bases and punches were constructed as rigid bodies. A 10-N force was applied by the punch in the center of the post in a nonlinear contact analysis. Modified von Mises stress, maximum principal stress, as well as shear and normal stress components were calculated.
Results: Both punch and base orifice sizes influenced the stress distribution of the push-out test. Bases with larger diameters and punches with smaller diameters caused higher stress in dentin and at the dentin/cement interface.
Conclusion: FEA showed that the diameter of the orifice base had a more significant influence on the stress distribution than did the punch diameter. For this reason, both factors should be taken into account during push-out experimental tests.

Keywords: bond strength, standardization, base size, punch diameter, finite element analysis

Full Text PDF File | Order Article


  © 2022 Quintessence Publishing Co Inc

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog