title: The effect of esthetic fibers on impact resistance of a conventional heat-cured denture base resin.
abstract: This study was conducted to observe the changes in impact resistance of a denture base resin reinforced with five types of fiber. E-glass, polyester, rayon, nylon 6, and nylon 6/6 fibers were cut into 2, 4, and 6 mm lengths and added into the resin at a concentration of 3% by weight. Five test specimens for each formulation, as well as control specimens without fiber, were prepared using a mold including a V-shaped notch with 55 x 10 x10 mm dimensions. Impact tests were carried out using a Charpy-type tester. Additionally, surfaces of the impact sections were observed under a scanning electron microscope (SEM). Results indicated that impact energy tended to increase with fiber length, and that the highest value was recorded for rayon fiber-reinforced specimens of 6 mm length. E-glass fiber reinforcement produced relatively stable, high values for each length, whereby good interfacial strength between polymer matrix and glass fibers was confirmed by SEM analysis.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
authors.forename: Orhan Murat
authors.initials: OM
authors.lastname: Doğan
authors.forename: Giray
authors.initials: G
authors.lastname: Bolayir
authors.forename: Selda
authors.initials: S
authors.lastname: Keskin
authors.forename: Arife
authors.initials: A
authors.lastname: Doğan
authors.forename: Bülent
authors.initials: B
authors.lastname: Bek
authors.forename: Ali
authors.initials: A
authors.lastname: Boztuğ
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D002482:Cellulose; D003799:Dental Stress Analysis; D003819:Denture Bases; D004548:Elasticity; D004955:Esthetics, Dental; D005898:Glass; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D009757:Nylons; D018583:Pliability
chemical_list: D000180:Acrylic Resins; D009757:Nylons; C009753:fiberglass; D002482:Cellulose; C012024:rayon, purified