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Updated: Aug 9, 2026
14:02
Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
Published on: November 1, 2012
Theoretical considerations of contraction stress
1Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Oral Science, University of Minnesota, Minneapolis, Minnesota, USA.
Compendium of Continuing Education in Dentistry. (Jamesburg, N.J. : 1995). Supplement
|March 23, 2002
Summary
Polymerization shrinkage in dental composites causes stress, leading to cracks and sensitivity. Understanding these stresses through physical models can optimize restorative treatments.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Clinical Dentistry
Background:
- Polymerization shrinkage of dental composites is a significant clinical issue.
- This shrinkage induces residual stresses in restored teeth, potentially causing enamel cracks, microleakage, and postoperative sensitivity.
Purpose of the Study:
- To analyze the factors influencing polymerization shrinkage stress in dental restorations.
- To highlight the importance of theoretical models in understanding and managing these stresses.
Main Methods:
- Utilizing universal physical laws to describe the relationships between shrinkage properties and clinical conditions.
- Developing theoretical models to analyze polymerization shrinkage stresses.
Main Results:
- Shrinkage stress is influenced by composite contraction, elastic modulus, cavity shape, and tooth-restoration bonding.
- Theoretical models provide a framework for quantifying these complex interactions.
Conclusions:
- Theoretical models are essential for analyzing polymerization shrinkage stresses in dental restorations.
- Optimizing clinical success in dental restorations can be achieved by rethinking and improving established methods using these models.
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