Surface Hardness of Acrylic Resins Exposed to Toothbrushing, Chemical Disinfection and Thermocycling
نویسندگان
چکیده
منابع مشابه
Comparative study of flexural strength of four acrylic resins before and after thermocycling process
Objectives Acrylic resins are one of the most important denture base materials in dentistry due to their favourable mechanical and physical properties. The purpose of present study is to compare 4 available acrylic flexural strength properties before and after thermocycling. Methods Acrylic resin specimens of Meliodent (Heraeus Kulzer, Hanau, Germany), Vertex (Vertex-dental BV, Zeist, Netherla...
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This study evaluated the effect of denture base polymer type (heat- and microwave-polymerized), ridge lap surface treatment (with and without methyl methacrylate-MMA etching) and thermocycling on the microtensile bond strength (microTBS) of Biotone acrylic teeth. Flat-ground, ridge-lap surface of posterior artificial teeth were bonded to cylinders of each denture base resin, resulting in the fo...
متن کاملStudy of the surface hardness and modulus of elasticity of conventional and microwave-cured acrylic resins.
The aim of this study was to evaluate the following acrylic resins: Clássico, QC-20 and Lucitone, recommended specifically for thermal polymerization, and Acron MC and VIPI-WAVE, made for polymerization by microwave energy. The resins were evaluated regarding their surface nanohardness and modulus of elasticity, while varying the polymerization time recommended by the manufacturer. They were al...
متن کاملSurface roughness of acrylic resins processed by microwave energy and polished by mechanical and chemical process
Correspondence to: Célia Marisa Rizzatti-Barbosa Department of Prosthesis and Periodontology Piracicaba Dental School, State University of Campinas (UNICAMP) Avenida Limeira, 901. Areião CEP: 13414-018 Piracicaba São Paulo Brazil. Phone: 00 55 19 3412 5373 Fax: 00 55 19 3412 5218 E-mail: [email protected] Abstract The aim of this study was to evaluate the influence of polymerization metho...
متن کاملMass Loss of Four Commercially Available Heat-polymerized Acrylic Resins after Toothbrushing with Three Different Dentifrices
The association between a toothbrush and a dentifrice is the most used denture cleaning method. The purpose of this study was to evaluate the abrasiveness of specific and non-specific denture cleaning dentifrices on different heat-polymerized acrylic resins. Sixteen specimens (90 x 30 x 3 mm) of each acrylic resin (QC-20, Lucitone 550, Clássico, Vipi-Cril) were prepared and randomly assigned to...
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ژورنال
عنوان ژورنال: Journal of Research and Practice in Dentistry
سال: 2014
ISSN: 2333-3650
DOI: 10.5171/2014.466073