BACKGROUND To evaluate the microleakage of silorane-based composite material (Filtek P90) with that of two homologous methacrylate-based composites materials (Filtek Z250 and Filtek Z250 XT), by using two different bonding techniques. MATERIALS AND METHODS Sixty extracted human maxillary first premolars prepared for standardized Class I cavities (4 mm × 2 mm × 2 mm) were randomly divided into...

Introdução: Os compostos resinosos são materiais bastante presentes no dia a da clínica odontológica. Apesar de suas vantagens e ótimas propriedades, as resinas compostas convencionais ainda apresentam limitações, como o maior tempo clínico falhas na adesão. Dessa forma tem-se surgimento das Bulk-Fill que entre propriedades temos: menor clínico, baixa contração polimerização, translucidez, além...

Objectives. To evaluate the polishing procedures effect on color stability and surface roughness of composite resins. Methods. Specimens were distributed into 6 groups: G1: Filtek Supreme XT + PoGo; G2: Filtek Supreme XT + Sof-Lex; G3: Filtek Supreme XT + no polishing; G4: Amelogen + PoGo; G5: Amelogen + Sof-Lex.; G6: Amelogen + no polishing. Initial color values were evaluated using the CIELab...

Tornou-se comum entre os profissionais de Odontologia a utilização líquidos modeladores as camadas resina composta, para facilitar escultura e o modelamento durante restaurações. Uma vez que qualidade desses parâmetros implica na caracterização final da superfície restauração, assim como sua qualidade, longevidade desempenho clínico, é relevante avaliar investigar efeito do uso materiais quanto...

The aim of this study was to evaluate the tissue compatibility of a silorane-based resin system (Filtek™ Silorane) and a methacrylate-based nanoparticle resin (Filtek™ Supreme XT) after implantation in the subcutaneous connective tissue of isogenic mice. One hundred and thirty five male isogenic BALB/c mice were randomly assigned to 12 experimental and 3 control groups, according to the implant...

OBJECTIVES The aim of this study was to investigate the effect of layering methods, flowable composite liner and use of low shrinkage silorane-based composite on the polymerization shrinkage stress of light cured composites. METHODS Aluminum blocks were used to prepare MOD cavities and divided into four groups. A universal hybrid methacrylate-based composite (Z250), a flowable composite (Z350...

The aim of this study was to compare the shrinkage stress of composite resins by three methods. In the first method, composites were inserted between two stainless steel plates. One of the plates was connected to a 20 kgf load cell of a universal testing machine (EMIC-DL-500). In the second method, disk-shaped cavities were prepared in 2-mm-thick Teflon molds and filled with the different compo...

OBJECTIVE To investigate the mechanical properties of different classifications of composites indicated for posterior application as functions of the storage condition and of the energy dose. MATERIAL AND METHODS Specimens (8 x 2 x 2 mm) were obtained according to the factors: I) Composites (3M ESPE): Filtek P60, Filtek Z350XT, and Filtek Silorane; II) Syringe storage conditions: room tempera...