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found in conventional composite resins , which have the negative point the polymerization contraction stress . This new material presents changes in its chemical composition , such as monomeric modification ...
composites (RBCs) in comparison to those of bulk- fill RBCs and conventional RBCs in simulated, clinically relevant cavities. Materials and methods CS over 300 s, TG and TR were assessed by a stress -strain ...
ABSTRACT Purpose: An important factor that contributes to deterioration of resin composite restorations is contraction stress that occurs during polymerization. The purpose of this article ...
analysis of composite materials . Experiments were performed on glass-bead filled polyethylene and polypropylene and epoxy resin . The dependence of debonding stresses and angles on contraction stress ...
tensile strength of material filled with 40, 50 or 60 wt. % of silanized silica were tested. The contraction stress was measured after 24 h by means of photoelastic study. The addition of 40-60 wt. % filler ...
Polymerization contraction , and the stresses associated with this, have presented problems with resin composite materials , particularly when used to restore cavities in posterior teeth. This paper ...
the contraction stress in the filling . Quite a few dentin treatments and bonding agents for restoration with composite resin have been developed in order to improve the marginal adaptation in cavities having part ...
composites [14]. Bulk fill composite materials have the following properties: (a) low polymerization shrinkage stress to decrease microleakage [28, 36, 45]; (b) improved depth of cure (at least 4 mm); (c) easy ...
Objective This in vitro study compared cuspal deflection of premolars restored with three bulk‐ fill composite resins to that of incrementally‐restored ones with a low‐shrinkage silorane‐based ...
is also significant. When using some of the less heavily filled composite resins , the stresses set up by the setting contraction of the resin may be too great and, finally, the more heavily filled composite ...
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