Related Experiment Video
Updated: Jun 28, 2025

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Assessment of Various Post Systems' Fracture Resistance after Endodontic Treatment
Sanjit Kumar Sahoo1, Vaibhav Awinashe2, Manisha Bhati3
1Associate Professor, Department of Conservative Dentistry and Endodontics, Institute of Dental Sciences, SOA University, Bhubaneswar, Odisha, India.
Objectives:
The study's objective is to evaluate the fracture resistance of a tooth that has had endodontic treatment and has been rebuilt using various post and core systems.
Materials And Methods:
Thirty-six extracted premolar teeth of similar sizes were picked, and at random, they were separated into three groups: group A received stainless-steel posts, group B received zirconia fiber posts, and group C received glass fiber posts. Dual-cured resin cement was used to cement each post. The acrylic resin blocks have samples imbedded in them. Additionally, fracture loads were measured while a compressive force was given to the tooth at a crosshead speed of 1 mm/minute. The one-way analysis of variance F-test and post hoc Tukey's test were then used to analyze the results.
Results:
When the mean values and standard deviation were compared, it was found that glass fiber posts had the highest fracture resistance, followed by posts made of zirconia fiber, while stainless-steel posts had the lowest fracture resistance.
Conclusion:
When compared to zirconia posts and stainless-steel posts, glass fiber posts had the highest level of fracture resistance.

