Microhardness Halogen Light Polymerization Units
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Effect of different light curing methods on mechanical and physical properties of resin-cements polymerized through ceramic discs
OBJECTIVE: The aim of this study was to compare the polimerization ability of three different light-curing units (quartz tungsten halogen, light-emitting diodes and plasma arc) and their exposure modes (high-intensity and soft-start) by determination of microhardness, water sorption and solubility, and diametral tensile strength of 5 dual-curing resin cement
J. Appl. Oral Sci.. Publicado em: 01/07/2011
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2. Avaliação da microdureza superficial de resinas compostas à base de metacrilato e silorano fotopolimerizadas com fontes de luz halógena e LED, em diferentes profundidades / Evaluation of the surface microhardness at different depths of methacrylate and silorane based composites cured with halogen lamps or LED
The enhanced mechanical properties of composites, as well as superior curing units, allowed the use of such restorative materials with more predictable results. However, it is known that the success of esthetic restorations depends on many factors such the amount and depth of polymerization, the type of curing unit used, the light intensity and the propertie
Publicado em: 2010
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3. Influência de fontes ativadoras na microdureza e no grau de conversão de resinas compostas diretas com diferentes opacidades e tipos de partículas
Uma polimerização adequada das resinas compostas diretas é importante para a longevidade das restaurações. O objetivo desse trabalho foi avaliar in vitro a microdureza e o grau de conversão de três resina compostas diretas: uma nanopartIculada (Filtek Supreme-3M-ESPE [FS]) e duas microhíbridas (Opallis-FGM [OP] e Charisma-Heraus Kulzer [CH]) em opaci
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2009
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4. Effect of different light-curing devices and aging procedures on composite knoop microhardness
The aim of this study was to evaluate the effect of light-curing devices (Halogen/HAL, Light Emitting Diodes/LED, Argon Laser/LAS and Plasma Arc/PAC) and aging procedures (Mechanical Cycling/MC, Thermal Cycling/TC, Storage/S, MC+TC and MC+TC+S) on the micro-hardness of bottom/B and top/T surfaces of 2-mm-high composite resin cylinders. The Knoop microhardnes
Brazilian Oral Research. Publicado em: 2009-12
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5. EFEITO DA UNIDADE DE LUZ E DA PROFUNDIDADE DE POLIMERIZAÇÃO SOBRE A MICRODUREZA DE UM COMPÓSITO
The aim of this study was to evaluate the influence of light curing devices in the depth of cure of one composite, using Vickers microhardness test. Specimens were prepared using a microhybrid composite Filtek Z250 (3M ESPE). The resins were placed in a bulk increment in 2 and 3 mm thick teflon cylindric molds, and then polymerized with the time of 40 second
Publicado em: 2006