[PDF] Top 20 Influence of composite resin volume and C-factor on the polymerization shrinkage stress

... do volume e do fator-C na tensão da contração de polimerização em resinas química e fotoativada, utilizando um método não rígido que, dessa forma, fornece valores baixos de tensão, causando mínima deflexão ... See full document

... The shrinkage leads to the deformation of the composite resins during the curing process, which, being constraint by bonding to cavity walls generates ...However, ... See full document

... Regarding the polymerization mode, several clinical approaches have been proposed to minimize polymerization shrinkage stress, including incremental layering techniques, the use ... See full document

... use of this technique leads to an increase in time spent with clinical procedures, with all the adverse effects that may arise ...disadvantages of this technique are the introduction of ... See full document

... longevity of resin depends on its binding between the margin of restorations and the polymer, and one factor that influences this aspect is the ... See full document

... techniques and restorative materials have been indicated to recover the stiffness of endodonti- cally treated teeth 6,7 .... The most frequently used mate- rials are composite resins ... See full document

... On the other hand, the microhardness of the com- posite resins does not depend just on the extension of the polymerization degree of the ... See full document

... Polymerization stress was measured using a univer- sal testing machine (Instron 5565; Instron, Canton, MA, ...USA). The test was performed using clear poly(methyl methacrylate) (PMMA) 28 cylinders (6 ... See full document

... result of the presence of the hydrophilic monomer 2-hydroxyethyl methacrylate (HEMA), ED Primer presents some permeability, allowing changes at the dentin-adhesive interface and, ... See full document

... 3 and 4. This means that there was an influence of the type of lamp ...by the fact that LED light presents a higher power (1200mW/cm²) than Halogen lamp (1200mW/cm² ), therefore, ... See full document

... techniques, the bond of the luting agent to the preexisting resin layer must be promoted by cleaning the surface prior to luting 11 to remove remnants of temporary ... See full document

... by the cur- rent results that correlate to other literature data [9, ...20,]. The material contains the least amount of particles com- pared to other composites that were included in ... See full document

... consisted of a contactless displacement transducer, of which the sensor was placed inside a vertically oriented quartz ...over the sensor; the composite is placed over it, ... See full document

... in the composite concentrates on the adhesive interface between the tooth and restorative material compromising the integrity in this region, which may cause marginal ... See full document

... examined the influence of thermocycling and mechanical loading on the bond strength of different low-shrinkage composite resin systems for Class I ... See full document

... (n=5) of each material were prepared in a polyvinyl siloxane mold (Express XT, 3 M ESPE, ...US). The diameter of 7 mm was selected based on the active tip of the light ... See full document

... along the three dimensional directions, while v xy , v xz and v yz and G xy , G xz and G yz are the Poisson’s ratios and the shear moduli in the orthogonal planes ... See full document

... with the Clearfil SE Bond/Composite Resins adhesive system, which were sectioned to obtain eight toothpicks ...mm of area and 4 mm in length) per ...XT), and EDC (restored with IPS ... See full document

... in the KHN test, as it did not present the minimum conditions required for assessing the parameters adopted in this ...mind the performance of the PAC 1 second group in this ... See full document

... On the other hand, it is important to point out that monomethacrylates monomers such as the IBOMA tend to form linear polymers when polymerized, (12) characterizing an amorphous structure with ... See full document