Results 151 to 160 of about 1,012 (196)
Some of the next articles are maybe not open access.
Cytotoxic effects of extracts of compomers
Acta Odontologica Scandinavica, 1999We have studied the cytotoxicity of 10 commercially available compomers. Extracts were taken in cell culture medium of non-cured, freshly-cured, and aged samples. Murine L-929 fibroblasts were exposed to the extracts for 24 h and the cytotoxicity was evaluated using dimethylthiazol diphenyltetrazolium (MTT) assay and neutral red uptake (NRU).
Jon E Dahl, J E Dahl
exaly +3 more sources
Surface Antibacterial Properties of Compomers
European Archives of Paediatric Dentistry, 2006This was to evaluate the antibacterial properties of four different compomers, using direct contact test (DCT) and agar diffusion test (ADT). Compomers (Polyacid Modified Composite Resin) form a group of dental restorative materials which were developed in order to improve conventional glass-ionomer and are widely used by pediatric dentists in primary ...
S, Matalon +3 more
openaire +2 more sources
Expansion behaviour of compomer restoratives
Biomaterials, 2001This study measured the dimensional changes due to hygroscopic expansion that occur in five commercially available compomer restorative materials using a computer-controlled laser micrometer. The materials tested were; [C] = Compoglass-F (Vivadent); [D] = Dyract AP (Dentsply DeTrey); [E] = Elan (Kerr); [F] = F2000 (3M); [H] = Hytac (Espe). Twelve discs
N M, Jedynakiewicz, N, Martin
openaire +2 more sources
The effect of 30% hydrogen peroxide on the color of compomers
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2003AbstractThe interaction between bleaching agents and recently introduced compomers has several issues that need to be explored, including morphology and mechanical properties. To investigate the effect of 30% hydrogen peroxide, a bleaching agent, on the color of compomers, three compomers (Compoglass F, Elan, and F2000) were polymerized, bleached up to
Y H, Kwon, T Y, Kwon, H I, Kim, K H, Kim
exaly +3 more sources
In vitro cytotoxicity of a composite resin and compomer
International Endodontic Journal, 2002AbstractAim This work was designed to investigate the potential cytotoxicity of two of the newer dental restorative materials, Spectrum® composite resin and Dyract® AP compomer.Methodology Cultured human endothelial cells (ECV‐304) were exposed to each of the restorative materials through a 70‐µm dentine barrier to simulate the in vivo clinical ...
C A, Quinlan +3 more
openaire +2 more sources
Compomers in restorative therapy of children: a literature review
International Journal of Paediatric Dentistry, 2006Objective. The restoration of carious primary teeth plays an underestimated role in paediatric dentistry. This is astonishing for many reasons, not least because many new materials have been introduced in recent years. New or modified techniques and materials, with better aesthetics and flexural properties, allow minimally invasive treatment.
Norbert, Krämer, Roland, Frankenberger
openaire +2 more sources
Dentin shear bond strength of compomers and composites
Dental Materials, 2000The aim of this study was to compare the shear bond strengths and fracture characteristics of two compomers bonded with a single step bonding agent with two modern composites, a microfil and hybrid, bonded with a fourth generation bonding agent.Freshly extracted human third molars were sectioned parallel to the occlusal surface to expose midcoronal ...
B T, Schneider +3 more
openaire +2 more sources
Effect of enamel pretreatments on bond strength of compomer
Dental Materials, 2001The objective of this study was to evaluate the effect of various enamel surface treatments on the bond strength of a compomer to enamel.Ground bovine enamel specimens were divided into four groups. A compomer (F2000, 3M) was bonded to the specimens using different enamel surface treatments.
Glasspoole, E.A. +2 more
openaire +5 more sources
Discoloration of a compomer by stains.
The Journal of the Greater Houston Dental Society, 1998This study evaluated the color stability of a polyacid-modified composite (compomer) upon exposure to stains. Five disks were prepared for immersion in each of five stains: coffee, chlorhexidine, cola, red wine, and water as a control. Color measurements were made on a reflection spectrophotometer at baseline, after 24-hour incubation, and after 24, 48,
R M, Fay, C S, Walker, J M, Powers
openaire +1 more source
RESIN-BASED COMPOSITES AND COMPOMERS IN PRIMARY MOLARS
Dental Clinics of North America, 2000Resin-based composite resins and polyacid-modified resin-based composites (compomers) have become popular for the restoration of primary anterior and posterior teeth. In some European countries, resin-based composites or glass-ionomers are the materials of choice for primary teeth because of the controversy over dental amalgam and its alleged adverse ...
openaire +2 more sources