Results 31 to 40 of about 88,329 (313)

Vickers microhardness comparison of 4 composite resins with different types of filler.

open access: yesJournal 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

Cytotoxicity of Different Composite Resins on Human Gingival Fibroblast Cell Lines

open access: yesBiomimetics, 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

Effects of alkalisation and volume fraction reinforcement of Bombyx mori silk fibre on the flexural strength of dental composite resins

open access: yesDental Journal, 2020
Background: Composite resins are widely used in dentistry to restore dental caries. Recently, short fibre-reinforced composite (FRC) resins have been widely used for high-stress areas, especially in posterior teeth.
Dyah Anindya Widyasrini   +1 more
doaj   +1 more source

Use of natural resins in repairing damaged timber beams – An experimental investigation [PDF]

open access: yes, 2019
Different techniques including the application of steel elements, composite materials and polymeric resins have been used in the past to repair damaged timber beams.
Benedetti, G   +3 more
core   +3 more sources

Erosion of Composite Resins [PDF]

open access: yesJournal of Dental Research, 1980
The surface degradation of composite resins caused by accelerated aging was studied. Accelerated aging for 900 hours caused erosion of the resin matrices and exposure of filler particles. Differences in surface profiles after aging suggest that the materials eroded at different rates. Accelerated aging may model erosive wear of composites.
Powers, John M., Fan, P. L.
openaire   +3 more sources

Resin composite restorative materials [PDF]

open access: yesAustralian Dental Journal, 2011
AbstractThis paper surveys the most important developments in resin‐based dental composites and focuses on the deficits (e.g. polymerization shrinkage) and strengths of the materials and their clinical implications. Moreover, differences between composite categories, such as hybrid, nanohybrid, microfilled, packable, ormocer‐based, silorane‐based ...
N, Ilie, R, Hickel
openaire   +2 more sources

Surface discoloration of composite resins: Effects of staining and bleaching

open access: yesDental Research Journal, 2012
Background: The purpose of this in vitro study was to evaluate surface discoloration of three microhybrid composite resins (Esthet·X HD, Clearfil AP-X, Gradia Direct) and five nanohybrid composite resins (Ceram·X, GC Kalore, G-aenial, Grandio, GrandioSO),
Claudio Poggio   +4 more
doaj   +1 more source

The effect of repeated preheating of dimethacrylate and silorane-based composite resins on marginal gap of class V restorations [PDF]

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects, 2017
Background. One of the problems with composite resin restorations is gap formation at resin‒tooth interface. The present study evaluated the effect of preheating cycles of silorane- and dimethacrylate-based composite resins on gap formation at the ...
Parnian Alizadeh Oskoee   +5 more
doaj   +1 more source

Mechanical properties of hand-making polyester composites [PDF]

open access: yes, 2018
The aim of this paper is to determine the effect of arrangement of fibreglass fabric plies in a polymer composite on a strength. Based on the experimental results, the real effect of plies arrangement and their most favourable configuration with respect ...
Malczarski, Mateusz   +4 more
core   +2 more sources

Compressive Strength of Bulk-Fill and Conventional Nano-hybrid Composite Resins: An in Vitro Study

open access: yesJournal of Dental School, 2021
Objectives Evaluation of the properties of recently introduced bulk-fill composite resins from different aspects is important. We aimed to evaluate the compressive strength of two bulk-fill composite resins with different viscosities compared with one ...
Maryam Mofidi   +3 more
doaj   +1 more source

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