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Updated: May 7, 2026
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Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
Published on: July 21, 2014
Postoperative sensitivity associated with low shrinkage versus conventional composites
Vladimir Ivanović1, Tatjana Savić-Stanković, Branislav Karadzić
1Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia. vladaivanovic@hotmail.com
Srpski Arhiv Za Celokupno Lekarstvo
|October 1, 2013
Summary
Low shrinkage composites significantly reduced postoperative tooth sensitivity compared to conventional materials. Operator skill also played a role in the incidence of sensitivity following dental restorations.
Area of Science:
- Restorative Dentistry
- Dental Materials Science
- Clinical Dentistry
Background:
- Postoperative sensitivity after dental restorations is a common concern.
- Factors contributing to sensitivity include preparation trauma, dentin sealing, material shrinkage, and microleakage.
Purpose of the Study:
- To evaluate the reduction in postoperative sensitivity using low-shrinkage composites versus conventional ones.
- To assess the impact of different bonding agents on sensitivity.
- To determine the influence of operator skill on postoperative sensitivity.
Main Methods:
- 960 permanent teeth from patients aged 21-40 years were restored.
- Four operators with varying experience levels prepared cavities.
- Eight groups of restorations were compared using different composite materials and bonding agents.
- Postoperative sensitivity was assessed using questionnaires by independent operators.
Main Results:
- The conventional composite (Point 4) with its bonding agent resulted in significantly higher sensitivity.
- Low-shrinkage composites showed reduced sensitivity, though differences between them were not statistically significant.
- Operator A, with less experience, reported the highest sensitivity scores.
Conclusions:
- Low-shrinkage composites are preferable to conventional materials for reducing postoperative sensitivity.
- Operator experience and skill are critical factors influencing the incidence of postoperative sensitivity.
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