Results 221 to 230 of about 77,854 (263)
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The composite resin post and core
The Journal of Prosthetic Dentistry, 1972Abstract It is not the purpose of this article to advocate that the composite resin post and core is superior to the cast dowel and coping or pin-retained amalgam. However, it is a technique which is both economical and time saving. Clinical experience and judgment must provide the final standard for its application.
Jerry R. Landwerlen, Homer H. Berry
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An Abrasion Test for Composite Resins
Journal of Dental Research, 1980An abrasive wear test for composite resins was proposed. A slurry of glass pearls and abrasive particles were used. The abrasive effect was examined for different particle sizes. Particle sizes were found which gave the same order of wear as found clinically for an amalgam, a composite resin, and unfilled resin.
Alvar Svensson +3 more
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The polymerization shrinkage of composite resins
Dental Materials, 1989The majority of methods used for the determination of volumetric polymerization shrinkage rely on mercury as the immersion medium. With current concern for industrial hygiene, the water-filled dilatometer may have advantages. The purpose of this study was to adapt this method for external-energy-cured materials.
J.S. Rees, P.H. Jacobsen
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Adaptation of a resin composite in vivo
Journal of Dentistry, 1996The adaptation of experimental dentine bonding systems has been evaluated in vivo.A cylindrical cavity which extended into dentine was prepared in the facial surface of vital teeth that were to be extracted for orthodontic reasons. The preparations were restored with a commercial light-activated resin composite that was mediated by experimental dentine
H. Chigira +5 more
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Porosity in posterior composite resins
European Journal of Oral Sciences, 1986Abstract – The percent pore area and the mean pore size were measured in specimens made of nine brands of composite resin restorative materials. The overall percent porosity ranged from 0.01 to 4.5%. The specimens for the study were prepared in two ways; by condensation or by pressure.
Roy I. Holland +2 more
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2012
Abstract This article discusses the composition of the major components of dental composite resins: organic resin matrix, filler, coupling agents, and initiator-accelerator systems. It describes the properties of composite resins that are related to the amount and type of filler and resin-matrix compositions.
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Abstract This article discusses the composition of the major components of dental composite resins: organic resin matrix, filler, coupling agents, and initiator-accelerator systems. It describes the properties of composite resins that are related to the amount and type of filler and resin-matrix compositions.
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The Journal of Prosthetic Dentistry, 1989
Posterior composite resin restorations have several physical limitations. Polymerization shrinkage during curing and resistance to wear are two factors that can be alleviated by a composite resin inlay. Curing the restoration extraorally in a heat-and-light curing unit and cementing the restoration with a composite resin cement reduces the deleterious ...
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Posterior composite resin restorations have several physical limitations. Polymerization shrinkage during curing and resistance to wear are two factors that can be alleviated by a composite resin inlay. Curing the restoration extraorally in a heat-and-light curing unit and cementing the restoration with a composite resin cement reduces the deleterious ...
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Photopolymerization of composite resins
2002Halogen lamps represents the most often used light source for composite photopolymerization. Many attempts have been made with continuous Ar-laser, XeCl pulsed laser and plasma light. All of them had some disadvantages which limited their use. At present highly avaiable light emitting blue diodes enables satisfying degree of conversion and lower ...
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Composite resins in the 21st century.
Quintessence international (Berlin, Germany : 1985), 1993Human enamel and dentin should be used as the physiologic standards with which to compare composite resins, especially in the posterior region. The intrinsic surface roughness of composite resins must be equal to or lower than the surface roughness of human enamel on enamel-to-enamel occlusal contact areas (Ra = 0.64 microns).
Willems, G. +3 more
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