Results 311 to 320 of about 106,979 (359)

Composite resins

2016
Composite resins are polymer-based materials used in dentistry for aesthetic repairs. They are prepared by free radical polymerization, which in modern materials is visible-light initiated. Monomers are bulky, viscous substances that react to create an organic matrix that is tough and durable in clinical service.
John Nicholson, Beata Czarnecka
openaire   +2 more sources

Measurement of opalescence of resin composites

Dental Materials, 2005
Opalescence is an optical property, where there is light scattering of the shorter wavelengths of the visible spectrum, giving the material a bluish appearance under reflected light and an orange/brown appearance under transmitted light. The objective of this study was to determine the opalescence of resin composites with a color measuring ...
John M. Powers, Yong-Keun Lee, Huan Lu
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[Pretreatment with composite resins].

Minerva stomatologica, 1988
NA
BERUTTI, Elio, CATAPANO S., GILARDINI P., MARINI R.   +3 more
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Optical properties of composite resins

Journal of Oral Rehabilitation, 1982
SummaryThe translucency and colour of a composite resin are characterized by two wavelengthdependent parameters: the absorption coefficient, K and the scattering coefficient, S. These parameters were calculated according to the Kubelka‐Munk (1931) equations for two commercial resins.
James M. Lindsay, Rafael Grajower, Wayne T. Wozniak   +2 more
openaire   +3 more sources

Composite Resin in Medicine and Dentistry

Journal of Long-Term Effects of Medical Implants, 2005
Composite resin has been used for nearly 50 years as a restorative material in dentistry. Use of this material has recently increased as a result of consumer demands for esthetic restorations, coupled with the public's concern with mercury-containing dental amalgam.
Jennifer Sullivan, James E. Haubenreich, Pamela S. Stein, Paul B. Osborne   +3 more
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The evaluation of resin composite consistency

Dental Materials, 1998
To evaluate a method for the assessment of the consistency of unset resin composite.Fourteen commercial resin composites were selected, which had a range of consistencies as assessed subjectively. The material was placed in a cylindrical mold with 8 mm diameter and 8 mm depth, and a glass rod with 4.37 mm diameter driven into the composite at 24.4 mm ...
Amin S. Rizkalla, Martin J. Tyas, Derek W. Jones   +2 more
openaire   +3 more sources

The composite resin post and core

The Journal of Prosthetic Dentistry, 1972
Abstract 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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Wear Rates of Resin Composites

Operative Dentistry, 2013
SUMMARY A laboratory study was conducted to examine the wear of resin composite materials using a generalized wear simulation model. Ten specimens each of five resin composites (Esthet•X [EX], Filtek Supreme Plus [SP], Filtek Z250 [Z2], Tetric EvoCeram [EC], and Z100 Restorative [Z1]) were subjected to wear challenges of 100,000, 400,000,
Robert L. Erickson, Terry M. Wilwerding, Mark A. Latta, Wayne W. Barkmeier   +3 more
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An Abrasion Test for Composite Resins

Journal of Dental Research, 1980
An 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, Lars-Ake Larsson, Lars Ehrnford, Tore Dérand   +3 more
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Porosity in posterior composite resins

European Journal of Oral Sciences, 1986
Abstract – 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, Jan W.V. van Dijken, I. Eystein Ruyter   +2 more
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