Results 21 to 30 of about 155,903 (385)
Frontiers in Dentistry, 2019 Objectives: Color stability of composite resins has a significant role in their durability and clinical service. Considering the increasing use of composite resins and their gradual discoloration, this study aimed to assess the efficacy of Listerine ...
Haleh Kazemi Yazdi +2 more
doaj +1 more source
Cytotoxicity of Different Composite Resins on Human Gingival Fibroblast Cell Lines
Biomimetics, 2021 The aim of the present study was to evaluate and compare the cytotoxic effects of eight composite resins on immortalized human gingival fibroblasts. Composite resins were eluted in cell culture medium for 48 or 72 h at 37 °C.
Riccardo Beltrami +5 more
doaj +1 more source
The reparability of contemporary composite resins [PDF]
European Journal of Dentistry, 2014 ABSTRACT Objective: The objective was to investigate the way that various surface treatments could influence the bond strength of the repair of methacrylate (MC) and silorane (SIL) composites. Materials and Methods: A total of 160 MC and SIL cylindrical specimens were polymerized and aged in artificial saliva solution for 7 days. Depending on
P. Dionysopoulos +4 more
openaire +3 more sources
Hydrothermal co-liquefaction of synthetic polymers and Miscanthus Giganteus; synergistic and antagonistic effects [PDF]
ACS Sustainable Chem Eng 2020, 8, 51, 19051-19061, 2021 Synthetic polymers constitute one of the main carbon-containing wastes generated nowadays. In this study, combined hydrothermal liquefaction (co-HTL) is evaluated for 1:1 mixtures of Miscanthus Giganteus and different synthetic polymers including poly-acrylonitrile-butadiene-styrene (ABS), Bisphenol-A based Epoxy resin, high density polyethylene (HDPE),
arxiv +1 more source
Color change of composite resins subjected to accelerated artificial aging
Indian Journal of Dental Research, 2013 Aim: The aim of this study was to evaluate the influence of accelerated artificial aging (AAA) on the color change of composite resins used in dentistry.
Denise Cremonezzi Tornavoi +3 more
doaj +1 more source
Color Stability and Surface Roughness of Resin Based Direct and Indirect Restorative Materials
European Annals of Dental Sciences, 2021 This study investigated discoloration and surface roughness (Ra) in resin-based computer aided design (CAD)/computer aided manufacturing (CAM) blocks and direct and indirect composite resins.
Elif Aybala Oktay +3 more
doaj +1 more source
Numerical and experimental analyses of resin infusion manufacturing processes of composite materials [PDF]
Journal of Composites Materials 46, 13 (2012) 1617-1631, 2012 Liquid resin infusion (LRI) processes are promising manufacturing routes to produce large, thick, or complex structural parts. They are based on the resin flow induced, across its thickness, by a pressure applied onto a preform/resin stacking. However, both thickness and fiber volume fraction of the final piece are not well controlled since they result
arxiv +1 more source
Recyclable flame-retardant epoxy composites based on disulfide bonds. Flammability and recyclability [PDF]
, 2021 A series of recyclable epoxy resin (REP) composites are successfully prepared in this study, aiming to improve flame retardancy while keep good recyclability and mechanical properties. The commercial 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (DOPO) with high reactive P-H bond is used as highly-efficient flame retardant in this work.
arxiv +1 more source
Resin composite contours [PDF]
British Dental Journal, 2010 When placing posterior composite resin restorations, clinicians often struggle to achieve good contacts. Frequently contacts that are successful are only confined to the occlusal aspect of the proximal wall. A clinical technique is discussed which achieves the correct contour as well as tight contacts.
openaire +3 more sources
Vickers microhardness comparison of 4 composite resins with different types of filler.
Journal of Oral Research, 2015 Composite resins are the material of choice to restore minimal invasive cavities; conversely, it is important to explore the mechanical properties of commercially available dental materials.
René García-Contreras +5 more
doaj +1 more source