Now showing items 1-10 of 973
Effect of thermal treatments on tensile strength of commercially cast pure titanium and Ti-6Al-4V alloys
Heating titanium structures is assumed to relieve tensions induced by the casting process as well as possibly optimizing some mechanical properties. The aim of this investigation was to evaluate the effect of thermal ...
Tensile bond strengths of hard chairside reline resins as influenced by water storage
Due to gradual resorption of the edentulous ridge bone, removable prostheses often require denture base relines to improve fit and stability. This research evaluated the bond strength between one heat-cured acrylic resin ...
Influence of ultrasonic setting on compressive and diametral tensile strengths of glass ionomer cements
(ABM, ABC, ABPol, 2008)
The aim of this study was to assess the influence of ultrasonic wave propagation on the compressive (CS) and diametral tensile (DTS) strengths of glass ionomer cements (GICs). Three variables were evaluated: conventional ...
Orthodontic brackets removal under shear and tensile bond strength resistance tests - a comparative test between light sources
(Wiley-v C H Verlag Gmbh, 2008-01-01)
We have investigated if a new LEDs system has enough efficient energy to promote efficient shear and tensile bonding strength resistance under standardized tests. LEDs 470 +/- 10 nm can be used to photocure composite during ...
Diametral tensile strength of dual-curing resin cements submitted exclusively to autopolymerization.
OBJECTIVES: To evaluate, at different times, the diametral tensile strength (DTS) of dual-curing resin cements that were not photopolymerized. METHOD AND MATERIALS: Equal amounts of base and catalyst pastes of Panavia F ...
Effects of Chlorhexidine and Fluoride on Irradiated Enamel and Dentin
(Sage Publications IncThousand OaksEUA, 2011)
Optimization of Pultrusion Process Parameters via Design of Experiments and Response Surface
Experimental designs were implemented to investigate the effects of mold temperature and pulling speed on the tensile strength of cylindrical cables produced by pultrusion. A two-level factorial design with a central point ...
Comparison of the tensile bond strengths of cast metal crowns luted with resin cements
(Blackwell Publishing, 2004-11-01)
The limitation of photoactivation of dual-polymerized resin cements along the margins of metal restorations may adversely affect the mechanical properties of these cements, thus impairing the retention of restorations. The ...
Tensile bond strength of self-etching versus total-etching adhesive systems under different dentinal substrate conditions
The use of acid etchants to produce surface demineralization and collagen network exposure, allowing adhesive monomers interdiffusion and consequently the formation of a hybrid layer, has been considered the most efficient ...
Alloxan diabetes alters the tensile strength, morphological and morphometric parameters of abdominal wall healing in rats
(Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, 2014-02-01)
PURPOSE:To investigate the effects of alloxan diabetes on the abdominal wall healing of rats undergoing laparotomy.METHODS:Ninety-six male Wistar rats weighing between 200 and 300 grams, divided into two groups: non-diabetic ...