Related Experiment Video
Updated: Aug 12, 2026

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
Published on: July 21, 2014
Physical properties and repair bond strength of direct and indirect composite resins
1Department of Cariology and General Dentistry, School of Dentistry, University of Michigan, Ann Arbor.
Abstract:
Use of composite resins now includes indirect curing methods. Surface chemistry, repair bond strength, plus location of failure and five physical properties of two direct and three indirect composite resins were determined. There were statistically significant differences in flexural strength of materials and in hardness values. Repair bond strength failures were not significantly different; failures occurred primarily at the interface. Multiple internal reflection spectroscopy confirmed the presence of unpolymerized material after cure in all products. Indirect cure of the direct composite resin increased the degree of cure.
More Related Videos
Related Concept Videos
Bonding in Metals
Mortar Properties
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 ASTM C...
Bonding and Strength of Aggregate
Relation Between Tensile Strength and Compressive Strength of Concrete
Reinforcements in Concrete

