Volumetric shrinkage of composites using video-imaging
Related Experiment Video
Updated: Sep 26, 2026

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
Published on: July 21, 2014
Louis J Sharp1, Inchon B Choi, Thomas E Lee
1Research and Development, Bisco Inc., Schaumburg, IL 60193, USA. louis.sharp@bisco.com
Objective:
This study involves investigation of the use of video-imaging for measurement of volumetric shrinkage of composites.
Methods:
Six composites were tested for volumetric shrinkage using video-imaging. The volumetric shrinkage was measured using the single- and multi-view volumetric reconstruction modes. All composites were cured using a VIP(TM) curing light for 40s at 500 mW/cm(2). Dynamic shrinkage was measured using the single-view mode with a red filter placed over the detector opening.
Results:
Analysis of the volumetric shrinkage values by a one way ANOVA for each composite showed no difference for the single- and multi-view measurement mode. The shrinkage values determined by video-imaging were compared to those measured for the same composites by mercury dilatometry by one way ANOVA followed by a paired comparison using the Bonferroni method.
Conclusion:
The video-imaging technique gives reproducible results for volumetric shrinkage of composites comparable to those measured by dilatometry.
More Related Videos
09:41Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
Published on: May 17, 2018
05:42Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique
Published on: July 27, 2022
Related Concept Videos
Shrinkage in Concrete
When concrete is still in its plastic state, it can undergo a decrease in volume by about 1% of its absolute volume. This decrease is known as plastic shrinkage. It arises either...
Drying Shrinkage
A portion of this drying shrinkage can be reversed; if the concrete is...
Carbonation Shrinkage
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...