Results 21 to 30 of about 3,393 (177)

Evaluation of the toxic potential of Bisphenol-A glycidylmethacrylate (BisGMA) on the third instar larvae of transgenic <i>Drosophila</i>. [PDF]

open access: yesToxicol Res (Camb)
Introduction In the present study the cytotoxic and genotoxic effects of Bisphenol-A glycidyl methacrylate (BisGMA) was studied on the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ)Bg9. Materials and methods The concentration of
Ibrahim N   +7 more
europepmc   +2 more sources

Fracture mechanical behavior of polymers: 1. Amorphous glassy state [PDF]

open access: yes, 2021
Theoretical analyses and experiments have been carried out to investigate fracture behavior of glassy polymers. Our birefringence measurements quantify the local stress buildup at cut tip during different stages of drawing. Based on polymethyl methacrylate (PMMA), bisphenol A polycarbonate (PC) and polyethylene terephthalate (PET), we find several key ...
arxiv   +1 more source

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

open access: yesInternational Journal of Biomaterials, 2022
Objectives. To assess the antibacterial efficacy of experimental dental composite resin with cerium oxide nanoparticles as fillers. Methods. The cerium oxide nanoparticles were prepared by the coprecipitation procedure.
Eldho Jijy Varghese   +2 more
doaj   +1 more source

Composite depth of cure using four polymerization techniques

open access: yesJournal of Applied Oral Science, 2009
The light-curing technique is relevant to reduce the degree of polymerization shrinkage, improving clinical and esthetic success of composite resin restorations.
Ericson Janolio de Camargo   +4 more
doaj   +1 more source

Discrepancies in degree of conversion measurements by FTIR

open access: yesBrazilian Oral Research, 2014
The purpose of this study was to evaluate the influence of the internal standard peak on the measured degree of conversion (DC) for methacrylate-based resins analyzed by Fourier-transform infrared spectroscopy (FTIR).
Fabrício Mezzomo Collares   +3 more
doaj   +1 more source

Influence of BPA exposure, measured in saliva, on childhood weight

open access: yesFrontiers in Endocrinology, 2022
IntroductionEndocrine disruptors such as bisphenol A (BPA), BPA glycidyl methacrylate, and other BPA acrylate–based derivatives have been related to type 2 diabetes, the metabolic syndrome, and obesity, among other metabolic disorders.
Leticia Heras-González   +5 more
doaj   +1 more source

A Pilot Study on Monomer and Bisphenol A (BPA) Release from UDMA-Based and Conventional Indirect Veneering Composites

open access: yesPolymers, 2022
This study aimed to investigate the release of common monomers from conventional (Dialog Vario, Enamel Plus HFO) and UDMA-based indirect veneering composites (VITA VM LC, GC Gradia).
Tristan Hampe   +7 more
semanticscholar   +1 more source

Is a Single Rinse Effective on Evacuating the Residual Monomers After Orthodontic Bonding? An In Vivo Study

open access: yesBezmiâlem Science, 2021
Objective:Orthodontic adhesives are known to release potentially harmful bio-chemicals such as Bisphenol A, a derivative from Bisphenol-A-Glycidyl-Methacrylate (Bis-GMA).
Erhan GÖRÜKMEZ   +2 more
doaj   +1 more source

Immediate Hypersensitivity Reaction to Composite Restorations

open access: yesNigerian Dental Journal, 2020
Restorative materials used in dentistry are constantly exposed to salivary components like enzymes that have a high impact on the degradation of  these materials and subsequent leaching of some of their constituents which may be harmful to the oral ...
O.H. Oderinu, O.E. Makinde
doaj   +1 more source

Annealing Free, Clean Graphene Transfer using Alternative Polymer Scaffolds [PDF]

open access: yesNanotechnology 26, 055302 (2015), 2015
We examine the transfer of graphene grown by chemical vapor deposition (CVD) with polymer scaffolds of poly(methyl methacrylate) (PMMA), poly(lactic acid) (PLA), poly(phthalaldehyde) (PPA), and poly(bisphenol A carbonate) (PC). We find that optimally reactive PC scaffolds provide the cleanest graphene transfers without any annealing, after extensive ...
arxiv   +1 more source

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