Polymerization shrinkage and polymerization shrinkage stress in polymer-based restoratives.
OBJECTIVE
This paper is intended to contribute to the recognition and understanding of problems related to polymerization shrinkage.


METHODS
Scientific publications of relevance with regard to this subject were critically reviewed.


METHODS
The dimensional changes which develop during the curing of resin composites and glass polyalkenoate cements are studied, with special reference to methods of determining shrinkage, shrinkage stress and stress relief.


CONCLUSIONS
As no method for handling the adhesive restorative materials has yet been described which guarantees a leakproof restoration, the practitioner has to accept the problem of polymerization shrinkage and destructive shrinkage stress. Only a proper understanding of the mechanisms that cause these problems and the techniques that may reduce their effects will enable the practitioner to derive maximum benefit from the application of resin composites and glass polyalkenoate cements in restorative dentistry.
Davidson
C L
CL
Department of Dental Materials Science, Academic Centre for Dentistry, Amsterdam, The Netherlands.
Feilzer
A J
AJ
D003188:Composite Resins / Q000737:chemistry*; D003736:Dental Cavity Lining; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D003890:Desiccation; D005899:Glass Ionomer Cements / Q000737:chemistry*; D008422:Materials Testing; D011108:Polymers / Q000737:chemistry*
D003188:Composite Resins; D005899:Glass Ionomer Cements; D011108:Polymers