title: Effect of polymerization cycles on flexural strengths and microhardness of different denture base materials.
abstract: The purpose of this study was to evaluate the effect of different polymerization cycles on the flexural strengths and microhardness of two denture base materials (Meliodent and Paladent). Heat-polymerized acrylic resin specimens (65.0 mm long×10.0 mm wide×2.5 mm in height) were prepared using different short and long polymerization cycles. After the specimens had been polymerized, they were stored in distilled water at 37±1°C for 24 h. Flexural strength test was performed at a cross-head speed of 5 mm/min and Vickers microhardness was measured. Data were analyzed with a 1-way analysis of variance followed by Tukey test, and Student t-test (α=0.05). The flexural strengths and microhardness were significantly different between Meliodent and Paladent (p<0.05). Significant differences were found among the polymerization cycles in terms of flexural strengths and microhardness (p<0.05). Polymerization with G cycle may be suggested for Meliodent and H cycle may be suggested for Paladent.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, Atatürk University.
authors.forename: Hasan
authors.initials: H
authors.lastname: Gungor
authors.forename: Mustafa
authors.initials: M
authors.lastname: Gundogdu
authors.forename: Murat
authors.initials: M
authors.lastname: Alkurt
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Yesil Duymus
mesh_terms: D000180:Acrylic Resins; D003799:Dental Stress Analysis; D003819:Denture Bases; D008422:Materials Testing; D018583:Pliability; D058105:Polymerization
chemical_list: D000180:Acrylic Resins