Results: 594

Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

Braz. oral res. (Online); 30 (1), 2016
Abstract Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months. 60 samples of eac...

Drying protocol influence on the bond strength and apical sealing of three different endodontic sealers

Braz. oral res. (Online); 30 (1), 2016
Abstract The aim of this study was to evaluate the influence of drying protocols (DP) on the apical sealing (AS) and on the bond strength (BS) of teeth filled with different sealers. The root canals of one hundred and fifty-six roots of maxillary canines were prepared with Reciproc rotary files (R50). Th...

Marginal and internal fit of zirconia copings obtained using different digital scanning methods

Braz. oral res. (Online); 30 (1), 2016
Abstract The objective of this study was to evaluate the marginal and internal fit of zirconia copings obtained with different digital scanning methods. A human mandibular first molar was set in a typodont with its adjacent and antagonist teeth and prepared for an all-ceramic crown. Digital impressions w...

Effect of new innovative restorative carbomised glass cement on intrapulpal temperature rise: an ex-vivo study

Braz. oral res. (Online); 30 (1), 2016
Abstract This study aimed to evaluate the temperature changes that occurred in the pulp chamber when using GCP Glass Carbomer Fill (GCP) and two different resin-modified glass-ionomer (RGI) restorative materials at different dentin thicknesses. A standardized Class I occlusal cavity with 1 mm or 2 mm den...

Atividade antibacteriana de cimentos endodônticos puros e acrescidos de antibióticos contra duas linhagens ATCC de Enterococcus faecalis

Rev. Salusvita (Online); 35 (1), 2016
Introdução: canais radiculares necrosados e não tratados se caracterizam pela presença de uma microbiota mista e polimicrobiana.O E. faecalis demonstra alta resistência a medicamentos usados durante o tratamento endodôntico, sendo um dos poucos microrganismos que tem demonstrado in vitro resistir a...

Resistência de união de adesivos all-in-one em diferentes substratos

Rev. Salusvita (Online); 35 (1), 2016
Introdução: A odontologia adesiva teve seu início no condicionamento ácido do esmalte. Com o rápido desenvolvimento dos novos produtos, os ensaios in vitro tornaram-se valiosos para comparar a RU dos adesivos ao esmalte, dentina e outros substratos - em análises imediatas ou de longo prazo para ava...

Efeito da aplicação adicional de silano a um sistema adesivo universal sobre a resistência de união entre uma cerâmica reforçada por dissilicato de lítio e uma resina composta

O objetivo deste estudo foi avaliar, por meio de ensaio de resistência ao microcisalhamento, o efeito da aplicação adicional de silano a um sistema adesivo universal na interface adesiva entre uma cerâmica reforçada por dissilicato de lítio e uma resina composta. Duzentos discos de IPS e.max Press/...

Differences in the force system delivered by different beta-titanium wires in elaborate designs

Abstract Objective: Evaluation of the force system produced by four brands of b-Ti wires bent into an elaborate design. Methods: A total of 40 T-loop springs (TLS) hand-bent from 0.017 x 0.025-in b-Ti were randomly divided into four groups according to wire brand: TMATM(G1), BETA FLEXYTM (G2), BETA III W...

Evaluation of stiffness and plastic deformation of active ceramic self-ligating bracket clips after repetitive opening and closure movements

OBJECTIVE: The aim of this study was to assess whether repetitive opening and closure of self-ligating bracket clips can cause plastic deformation of the clip.METHODS: Three types of active/interactive ceramic self-ligating brackets (n = 20) were tested: In-Ovation C, Quicklear and WOW. A standardized co...

Color stability of ceramic brackets immersed in potentially staining solutions

OBJECTIVE: To assess the color stability of five types of ceramic brackets after immersion in potentially staining solutions.METHODS: Ninety brackets were divided into 5 groups (n = 18) according to brackets commercial brands and the solutions in which they were immersed (coffee, red wine, coke and artif...