title: Physical properties of different composites.
abstract: The purpose of this study was to determine the flexural strength (FS), flexural modulus (FM), depth of cure (DC), polymerization shrinkage (PS), and microhardness (VH) of the following composites: Two packable composites--Filtek P-60 and Solitaire 2; One ion-releasing composite--riston AT; and Two hybrid composites--Charisma and Filtek Z-250. Data of the different tests conducted were obtained as follows: FS and FM data were determined with a universal-testing machine; Polymerization shrinkage was determined using the apparatus of Watts and Cash; Depth of cure was measured with a micrometer (Mitotuyo, UK); and Microhardness was measured with a Shimadzu Microhardness tester (500 g, 15 seconds). All data of the different tests were statistically analyzed by one-way variance analysis (ANOVA), which yielded the following results: Filtek Z-250 showed the statistically highest flexural strength and modulus values. Solitaire 2 exhibited the highest shrinkage, while the volumetric shrinkage results of Filtek Z-250 and Filtek P-60 ranked the lowest. For depth of cure, there were no statistically significant differences among all materials tested (p<0.05). Microhardness results revealed the following tendency: Filtek Z-250 = Filtek P-60 > Ariston AT = Solitaire 2 = Charisma.
authors.affiliation: Department of Operative Dentistry, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ersoy
authors.forename: Arzu
authors.initials: A
authors.lastname: Civelek
authors.forename: Estelle
authors.initials: E
authors.lastname: L'Hotelier
authors.forename: Esra Can
authors.initials: EC
authors.lastname: Say
authors.forename: Mubin
authors.initials: M
authors.lastname: Soyman
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry / Q000528:radiation effects; D003188:Composite Resins / Q000737:chemistry / Q000528:radiation effects; D018772:Dental Marginal Adaptation; D003799:Dental Stress Analysis; D004548:Elasticity; D006244:Hardness; D008422:Materials Testing; D044367:Phase Transition; D055585:Physical Phenomena; D010825:Physics; D018583:Pliability
chemical_list: C084111:Charisma composite resin; D003188:Composite Resins; C438835:Filtek P60 Composite Resin; C444701:Filtek Z250; C469658:Solitaire 2 composite resin; C479083:ariston AT; D017438:Bisphenol A-Glycidyl Methacrylate