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Polymerization shrinkage and polymerization shrinkage stress in polymer-based restoratives. 1997

C L Davidson, and A J Feilzer
Department of Dental Materials Science, Academic Centre for Dentistry, Amsterdam, The Netherlands.

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.

UI MeSH Term Description Entries
D008422 Materials Testing The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility. Biocompatibility Testing,Biocompatible Materials Testing,Hemocompatibility Testing,Testing, Biocompatible Materials,Testing, Hemocompatible Materials,Hemocompatibility Testings,Hemocompatible Materials Testing,Materials Testing, Biocompatible,Materials Testing, Hemocompatible,Testing, Biocompatibility,Testing, Hemocompatibility,Testing, Materials,Testings, Biocompatibility
D011108 Polymers Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS). Polymer
D003188 Composite Resins Synthetic resins, containing an inert filler, that are widely used in dentistry. Composite Resin,Resin, Composite,Resins, Composite
D003736 Dental Cavity Lining An inner coating, as of varnish or other protective substance, to cover the dental cavity wall. It is usually a resinous film-forming agent dissolved in a volatile solvent, or a suspension of calcium hydroxide in a solution of a synthetic resin. The lining seals the dentinal tubules and protects the pulp before a restoration is inserted. (Jablonski, Illustrated Dictionary of Dentistry, 1982) Varnish, Cavity,Cavity Liner, Dental,Cavity Lining Varnish,Cavity Lining Varnishes,Cavity Lining, Dental,Cavity Linings, Dental,Cavity Varnishes,Dental Cavity Liner,Dental Cavity Liners,Dental Cavity Linings,Liners, Dental Cavity,Lining, Dental Cavity,Linings, Dental Cavity,Cavity Liners, Dental,Cavity Varnish,Liner, Dental Cavity,Varnish, Cavity Lining,Varnishes, Cavity,Varnishes, Cavity Lining
D003793 Dental Restoration, Permanent A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (Jablonski, Dictionary of Dentistry, 1992) Dental Fillings, Permanent,Dental Filling, Permanent,Dental Permanent Filling,Dental Permanent Fillings,Dental Restorations, Permanent,Filling, Dental Permanent,Filling, Permanent Dental,Fillings, Dental Permanent,Fillings, Permanent Dental,Permanent Dental Filling,Permanent Dental Fillings,Permanent Dental Restoration,Permanent Dental Restorations,Permanent Filling, Dental,Permanent Fillings, Dental,Restoration, Permanent Dental,Restorations, Permanent Dental
D003799 Dental Stress Analysis The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures. Analyses, Dental Stress,Analysis, Dental Stress,Stress Analyses, Dental,Stress Analysis, Dental,Dental Stress Analyses
D003890 Desiccation Removal of moisture from a substance (chemical, food, tissue, etc.). Dessication
D005899 Glass Ionomer Cements A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out. Glass Ionomer Cement,Glass Polyalkenoate Cement,Polyalkenoate Cement,Polyalkenoate Cements,Glass Polyalkenoate Cements,Glass-Ionomer Cement,Cement, Glass Ionomer,Cement, Glass Polyalkenoate,Cement, Glass-Ionomer,Cement, Polyalkenoate,Cements, Glass Ionomer,Cements, Glass Polyalkenoate,Cements, Glass-Ionomer,Cements, Polyalkenoate,Glass-Ionomer Cements,Ionomer Cement, Glass,Polyalkenoate Cement, Glass
D018772 Dental Marginal Adaptation The degree of approximation or fit of filling material or dental prosthetic to the tooth surface. A close marginal adaptation and seal at the interface is important for successful dental restorations. Adaptation, Marginal, Dental,Marginal Adaptation, Dental,Dental Internal Adaptation,Dental Internal Fit,Adaptation, Dental Internal,Adaptation, Dental Marginal,Adaptations, Dental Internal,Adaptations, Dental Marginal,Dental Internal Adaptations,Dental Internal Fits,Dental Marginal Adaptations,Fit, Dental Internal,Fits, Dental Internal,Internal Adaptation, Dental,Internal Adaptations, Dental,Internal Fit, Dental,Internal Fits, Dental,Marginal Adaptations, Dental

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