Results: 162

Differences between polydioxanone and poliglactin in intestinal anastomoses - a comparative study of intestinal anastomoses

ABSTRACT Introduction: Intestinal anastomosis is a surgical practice constantly realized by surgeons worldwide. When the option is to perform manual anastomosis, which is still widely used for its low cost, the question arises as to the best material to be applied. Objective: To compare polydioxanone a...

Dentin pretreatment and adhesive temperature as affecting factors on bond strength of a universal adhesive system

J. appl. oral sci; 25 (5), 2017
Abstract Objectives: To evaluate the effects of dentin pretreatment and temperature on the bond strength of a universal adhesive system to dentin. Material and Methods: Ninety-six extracted non-carious human third molars were randomly divided into 12 groups (n=8) according to Scotchbond Universal Adhes...

Effects of porcelain thickness on the flexural strength and crack propagation in a bilayered zirconia system

J. appl. oral sci; 25 (5), 2017
Abstract Objective: This study evaluated the influence of porcelain (VM9, VITA Zahnfabrik, Germany) thickness on the flexural strength and crack propagation in bilayered zirconia systems (YZ, VITA Zahnfabrik, Germany). Material and Methods: Thirty zirconia bars (20.0x4.0x1.0 mm) and six zirconia blocks...

In vitro and in vivo evaluations of glass-ionomer cement containing chlorhexidine for Atraumatic Restorative Treatment

J. appl. oral sci; 25 (5), 2017
Abstract Objectives: Addition of chlorhexidine has enhanced the antimicrobial effect of glass ionomer cement (GIC) indicated to Atraumatic Restorative Treatment (ART); however, the impact of this mixture on the properties of these materials and on the longevity of restorations must be investigated. The ...

Effect of 2 % chlorhexidine on dentin shear bond strength of different adhesive systems: a 6 months evaluation

Int. j. morphol; 35 (3), 2017
This study evaluated the effect of chlorhexidine dentin treatment on shear bond strength (SBS) of adhesive systems after different storages. The work included 144 third molars that had their dentin exposed and were divided in 6 groups: G1 (ASB+CHX: Adper Scotchbond 1XT + chlorhexidine 2 % prior Primer); ...

Tensiometric analysis of meshes used in abdominal ventral wall defects in rats

ABCD (São Paulo, Impr.); 30 (3), 2017
ABSTRACT Background: Among the various strategies to avoid exaggerated foreign body reaction in the treatment of hernias is the limitation of the amount of polypropylene or the use of absorbable material. Aim: To evaluate the healing of defects in the abdominal wall of rats, comparing microporous polyp...

Microtensile Bond Strength of Adhesive Systems in Different Dentin Regions on a Class II Cavity Configuration

Braz. dent. j; 28 (4), 2017
Abstract The aim of this study was to evaluate microtensile bond strength (µTBS) of self-etch and etch-and-rinse adhesives systems compared in different dentin regions (central-CD or proximal-PD) in a class II cavity configuration. A class II (mesial-oclusal-distal) cavity configuration was simulated on...

Comportamento mecânico de instrumentos WaveOne e ProTaper em relação à torção, dureza e tenacidade
Mechanical properties of WaveOne and ProTaper instruments in relation to torsion, hardness and toughness

Dent. press endod; 7 (2), 2017
Objetivo: esse estudo teve como objetivo avaliar a resistência à fratura por torção de duas marcas de instrumentos mecanizados de NiTi, com formas geométricas distintas e produzidas por ligas metálicas diferentes. Métodos: quinze instrumentos WaveOne Large e quinze ProTaper F4 foram selecionados e...

Resistência de união de compósitos do tipo Bulk Fill: análise in vitro

Introdução: A classe dos compósitos Bulk-Fill tem obtido popularidade com a promessa de ser fotopolimerizado efetivamente em camadas de até quatro milímetros, fato que contrasta com os dois milímetros requisitados para os compósitos convencionais para manutenção da adesividade da restauração. ...

Discoloration and force degradation of orthodontic elastomeric ligatures

ABSTRACT OBJECTIVE: The aim of the present study was to evaluate color changes and force degradation of orthodontic elastomeric ligatures in different stretching patterns during a 8-weeks period. METHODS: Two elastomers with the minimum and two with the maximum color changing, and gray elastomers of t...