Related Experiment Video
Updated: Mar 9, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Comparison of compressive strength among three different intracanal post materials in primary anterior teeth: An in
Nilavu Nilavarasan1, R Hemalatha1, R Vijayakumar1
1Department of Pedodontics, SRM Dental College, Chennai, Tamil Nadu, India.
Objective:
The objective of our study was to compare the fracture resistance and the mode of failure among three different post materials in primary anterior teeth.
Materials And Methods:
A total of sixty extracted primary anterior teeth were selected for the study. The samples were divided into three groups of twenty teeth each: Group I (Ribbond), Group II (Omega loop), and Group III (Glass fiber post). Pulp therapy was followed by intracanal post and crown buildup. The samples were mounted in self-cure acrylic and subjected to compressive strength test using universal testing machine (Instron). The maximum force at which the tooth fractured was recorded.
Results:
The values were subjected to one-way analysis of variance. The mean compressive strength values of Ribbond, omega loop, and glass fiber post were found to be 83.25 N, 61.60 N, and 75.55 N, respectively. The P value was found to be 0.220.
Conclusion:
Group I (Ribbond) showed the highest fracture resistance values followed by Group III (Glass fiber post) and Group II (Omega loop). Although there is difference in mean values, they were nonsignificant.
More Related Videos
Related Concept Videos
Strength of Cement
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
Relation Between Tensile Strength and Compressive Strength of Concrete
Mortar Properties
Impact Strength of Concrete
Behavior of Concrete Under Compressive Load
As the concrete specimen fractures under...

