[PDF] Top 20 Influence of additional polymerization in the microhardness of direct composite resins

... addition, the manufacturing of composite resin restorations by the indirect technique allows the ob- tainment of a higher conversion degree of these resins by ... See full document

... mm of active internal diameter) were commercially available for use in the same ...LCU. The spectral emittance between 350 and 550 nm of the LCU was measured using each light ... See full document

... process of chemical and light composite resin ...problems. The aim of the present in vitro study was to evaluate the volume and C-factor influence on chemical and ... See full document

... Ideally, the degree of curing should be the same throughout the depth of the restoration, and the ratio of hardness (more external / more internal) should be equal ... See full document

... change in composite resins, if the alcoholic concentration influences this variation besides analyzing within the composite resins tested, which would present greater ... See full document

... studied the flexural properties of acrylic resin polymers reinforced with unidi- rectional interlocked glass fibers in temporary fi- xed partial prostheses and denture bases made with self- and ... See full document

... purpose of this study was to assess the effects of post-polymerization heat on the flexural strength of direct compo- ...sites. Direct composite specimens ... See full document

... The composite resins Empress Direct (Ivoclar Vivadent, Schaan, Liechtenstein) and Z350 XT (3M/ESPE, ...selected. The specifications of each composite resin brand are ... See full document

... immersion in wine, corresponding to the literature ...forms of inorganic particles in all nanoparticulate resins: dispersed - silica particles, measuring approximately 20 nm; and ... See full document

... characterize the composites used in this study and also help understand the results, some properties of the materials were ...mm of each resin. The elastic modulus was ... See full document

... 13 The results of the present study are in disagreement with those of other studies because composites of the same brand but with distinct qualities also exhibited ... See full document

... using the light-curing Spectramat (Ivoclar Vivadent/ Liechtenstein), carrying a final polymerization per 10 ...length of 400-500 (EDG-LUX- Brazil), carrying a final polymerization for 10 ... See full document

... that the conformation of the DNA has little influ- ence on the total strand break yield; instead, the target volume is the key ...for the DSB yield, where the ... See full document

... magnification) of heat-polymerized specimen showing fibers close to resin and with clear signals of adhesion to resin matrix ...magnification) of self-polymerized specimen showing space between ... See full document

... divide the contraction of the resins in two stages, pre-gel and post-gel, with the contraction of the material involving the combination of ...During ... See full document

... h in the solution, color measurements were obtained again using the spectrophotometer, as described ...measurement, the specimens stored in the staining solution were rinsed ... See full document

... at the buccal surface (baseline); 2) after 30 days in distilled water storage at 37 ºC; and 3) after 30 days in coffee storage (PCRVs were maintained in coffee for 10 minutes per day) at 37 ... See full document

... between the types of resin tested and the two types of bleaching, the t test (p <5%) was applied, and the results showed that the 22% carbamide peroxide presented ΔE ... See full document

... on the palatal surface of the composite ...considered. The stress distribu- tion was analyzed in the post, dentin and cement layer when ZC and GF posts were fixed to ... See full document

... that the indented areas corresponded to free points of pull-out, which is confirmed that it did not significantly interfere in the hardness ...test. In both methods there was pull-out, ... See full document