Contraction (shrinkage) in polymerization. Part II. Dental resin composites

L. A. Linden; J. Jakubiak

Published : 2022-09-19

Vol. 46 No. 9 (2001)

Contraction (shrinkage) in polymerization. Part II. Dental resin composites

L. A. Linden J. Jakubiak

Abstract

A review with 78 references covering the linear and volumetric contraction producing internal stresses in photocured dental restorative resin composites. The stresses are partially reduced by the flow of resin, ingress of air bubbles, and absorption of water. Computer simulations allow to predict the directions of shrinkage vectors (Fig. 4). Polymerization shrinkage of (meth)acrylate monomers can be reduced by fillers (up to 80%, Table 4) or prepolymers added to the base monomer mix. Free-radical ring-opening polymerization of suitable monomers decreases volume contraction because some covalent bonds are cleft to give near Van der Waals bond distances.

Keywords

skurcz polimeryzacyjny ; skurcz liniowy i objętościowy ; kompozyty dentystyczne ; występowanie naprężeń ; sposoby ograniczania naprężeń polymerization contraction ; linear and volumetric shrinkage ; dental composites ; stress formation ; stress control

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Linden, L. A., & Jakubiak, J. (2022). Contraction (shrinkage) in polymerization. Part II. Dental resin composites. Polimery, 46(9), 590-595. Retrieved from https://ichp.vot.pl/index.php/p/article/view/2111

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L. A. Linden polimery@ichp.pl

Affiliation
Polymer Research Group, Department of Dental Biomaterial Science, Karolinska Institute, Box 4064, S-141 04 Huddinge (Stockholm), Sweeden and Department of chemistry and Chemical Engineering Technical and Agricultural Chemistry, Seminaryjna 3, 85-32

J. Jakubiak