Results 111 to 120 of about 4,825 (154)

Estudio de la copolimerizacion del BIS-GMA con BIS-GMA sililado y caracterizacion de los polimeros resultantes

, 2006
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Influence of additives on the properties of Bis-GMA/Bis-GMA analog comonomers and corresponding copolymers

Dental Materials, 2007
The purpose of this study was to evaluate the effect of two additives: propionaldehyde (aldehyde) and 2,3-butanedione (diketone) on the properties of Bis-GMA diluted with TEGDMA and the synthesized Bis-GMA analogs, propoxylated Bis-GMA (CH(3)Bis-GMA) and propoxylated fluorinated Bis-GMA (CF(3)Bis-GMA).Nine experimental comonomers were prepared ...
Rafael Mondelli, Anuradha Prakki, S Kalachandra   +2 more
exaly   +3 more sources

Synthesis, characterization and evaluation of urethane derivatives of Bis-GMA

Dental Materials, 2003
The aims of the study were to synthesize derivatives of Bis-GMA having pendant n-alkyl urethane substituents and to characterize and evaluate their physicochemical properties.Stoichiometric amounts of Bis-GMA and n-alkyl isocyanates were reacted in dichloromethane with dibutyltin dilaurate as a catalyst.
Joseph M Antonucci
exaly   +3 more sources

Post-irradiation polymerization of composites containing bis-GMA and TEGDMA

Dental Materials, 1999
This study was conducted to evaluate the effect of the amount of TEGDMA on post-irradiation polymerization of bis-GMA based composites.Four experimental composites containing bis-GMA and TEGDMA at the ratios (w/w) of 75/25, 70/30, 67/33, and 50/50 were prepared.
H Tarumi, S Imazato, S Ebisu
exaly   +3 more sources

Bis-GMA affects craniofacial development in zebrafish embryos ( Danio rerio )

Environmental Toxicology and Pharmacology, 2016
Estrogen is a steroid hormone that is vital in vertebrate development and plays a role in a variety of developmental processes including cartilage and craniofacial formation. The effects of estrogen can be mimicked by other compounds found in the environment known as xenoestrogens. Bisphenol-A (BPA) is a known xenoestrogen and is combined with glycidyl
Christopher S Lassiter
exaly   +3 more sources

Fractography of a bis-GMA Resin

Journal of Dental Research, 1989
The fracture behavior of a bis-GMA resin was studied by means of the double-torsion test. The fracture parameter measured was the stress-intensity factor. Fracture occurred in either a stick-slip (unstable) or continuous (stable) manner, depending upon the test conditions.
D M, Davis, N E, Waters
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Effects of water on the long‐term properties of Bis‐GMA and silylated‐(Bis‐GMA) polymers

Journal of Applied Polymer Science, 2007
AbstractBis‐GMA (2,2‐bis‐[4‐(2‐hydroxy‐3‐methacryloxypropoxy)phenyl]propane) is a viscous hygroscopic monomer which is used with triethyleneglycol‐dimethacrylate (TEGDMA) for dental restorations. Bis‐GMA was silylated with dimethyl‐isopropyl‐siloxane and further polymerized in order to increase water resistance and viscosity.
Filiberto Rivera‐Torres, Ricardo Vera‐Graziano   +1 more
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BIS-GMA–BASED RESINS IN DENTISTRY: ARE THEY SAFE?

The Journal of the American Dental Association, 1999
The authors critically surveyed research dealing with the release of resin components from dental composites and the potential of these agents to mimic or disrupt estrogenic cell responses.The studies reviewed included those on synthetic methods used to make bisphenol A glycidyl methacrylate, or BIS-GMA, and the biological effects of this resin in cell
K J, Söderholm, A, Mariotti
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Residual monomer (Bis‐GMA) of composite resins

Journal of Oral Rehabilitation, 1982
SummaryA method of measuring residual monomer (Bis‐GMA) is described. In addition, the percentage of residual monomer eluted into water from composite resins after setting was compared for several commercial products.
K, Inoue, I, Hayashi
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Isocyanato- and Methacryloxysilanes Promote Bis-GMA Adhesion to Titanium

Journal of Dental Research, 2005
In dentistry, adhesion promotion with 3-methacryloyloxypropyltrimethoxysilane is usually sufficient, but its hydrolytic stability is a continuous concern. The hydrolytic stability of an alternative, 3-isocyanatopropyltriethoxysilane, was compared with that of conventional 3-methacryloyloxypropyltrimethoxysilane.
Lassila, LVJ, Matinlinna, JP, Kangasniemi, I, Vallittu, PK   +3 more
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