Results 31 to 40 of about 590,085 (277)

Temperature change of the pulpal floor and restoration with preheated bis-GMA free and containing resin composite (a randomized clinical trial)

open access: yesBulletin of the National Research Centre, 2022
Background Preheating is one of several innovative approaches and improvements developed to increase the durability and clinical behavior of resin composites.
AlShimaa Nasser   +2 more
doaj   +1 more source

The effect of UDMA and Bis-GMA irradiation period on residual monomers in resin packable composite

open access: yesDental Journal, 2019
Background: Residual monomers are non-polymerized monomers which can cause clinical harm, for example inflammation, to oral cavity tissue while the remaining monomers can potentially be carcinogenic.
Jayanti Rosha   +3 more
doaj   +1 more source

Analysis of Major Components Contained in Bis-GMA Monomer.

open access: yesDental Materials Journal, 1999
The major components contained in commercial Bis-GMA monomer were isolated by thin layer chromatography (TLC) and identified by NMR and high resolution mass spectroscopy. In addition to the two major components already known (Bis-GMA and Iso-bis-GMA), an unknown hydrophilic third major component was isolated and identified as 2,2-[4-(2-hydroxy-3 ...
OHSAKI, Ayumi, IMAI, Yohji
openaire   +3 more sources

Influence of hydrogen bonding on properties of BIS-GMA analogues

open access: yesJournal of Materials Science: Materials in Medicine, 1997
The influence of chemical structure on the important properties of composite matrix resins is being systematically investigated. This study addresses the relationships between pendent side chain structures, viscosity and curing shrinkage. In particular, viscosity is known to be greatly influenced by intermolecular interactions, such as hydrogen bonding,
S, Kalachandra   +4 more
openaire   +2 more sources

Natural history of liver disease in a large international cohort of children with Alagille syndrome: Results from the GALA study

open access: yesHepatology, EarlyView., 2022
Natural history of liver disease in a large international cohort of children with Alagille syndrome: Results from the GALA study. Abstract Background and Aims Alagille syndrome (ALGS) is a multisystem disorder, characterized by cholestasis. Existing outcome data are largely derived from tertiary centers, and real‐world data are lacking.
Shannon M. Vandriel   +93 more
wiley   +1 more source

Water sorption of light–cured composites [PDF]

open access: yesAl-Rafidain Dental Journal, 2005
The aim of the present research was to study the percentage water sorption and solubility of Esthet composite resin based on an ethoxylated bisphenol A glycol dimethacrylate (Bis–EMA) and Heliomolar composite resin based on bisphenol A glycol ...
Ammar Kh Al–Nori
doaj   +1 more source

Bisphenol A in dental sealants and its estrogen like effect

open access: yesIndian Journal of Endocrinology and Metabolism, 2012
Bisphenol A or BPA-based epoxy resins are widely used in the manufacture of commercial products, including dental resins, polycarbonate plastics, and the inner coating of food cans. BPA is a precursor to the resin monomer Bis-GMA.
Manu Rathee   +2 more
doaj   +1 more source

Evaluation of BPA and Bis-GMA Release from Recent Dental Composite Materials by LC-MS/MS

open access: yesSeparations, 2023
Bisphenol-A (BPA) is a xenoestrogen widely used as a synthetic precursor of resin monomers. There is arise need to acquire BPA-free resin-matrix composites to prevent the health effects of BPA.
Lígia Lopes-Rocha   +5 more
doaj   +1 more source

Nuclear Magnetic Resonance Spectra of Bis-GMA and Iso-bis-GMA

open access: yesDental Materials Journal, 1994
2, 2-Bis [4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl] propane (bis-GMA) is widely used in dentistry as a monomer of composite resin system and their bonding agents. Since bis-GMA is not purified, its isomers and some chemicals such as residual initiator remain in the commercial product. Bis-GMA and iso-bis-GMA were separated from bis-GMA monomer by
openaire   +3 more sources

Embryonic exposure to bisphenol A glycidyl methacrylate induces craniofacial cartilage malformation via NLR signaling pathway in zebrafish

open access: yesEcotoxicology and Environmental Safety
Bisphenol A (BPA) can combine with glycidyl methacrylate to form bisphenol A glycidyl methacrylate (Bis-GMA). Bis-GMA is an important industrial raw material and a significant component of dental resin materials.
Wenhao Luo   +4 more
doaj   +1 more source

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