title: Reinforcing effects of different fibers on denture base resin based on the fiber type, concentration, and combination.
abstract: The aim of this study was to evaluate the reinforcing effects of three types of fibers at various concentrations and in different combinations on flexural properties of denture base resin. Glass (GL), polyaromatic polyamide (PA) and ultra-high molecular weight polyethylene (PE) fibers were added to heat-polymerized denture base resin with volume concentrations of 2.6%, 5.3%, and 7.9%, respectively. In addition, hybrid fiber-reinforced composite (FRC) combined with either two or three types of fibers were fabricated. The flexural strength, modulus and toughness of each group were measured with a universal testing machine at a crosshead speed of 5 mm/min. In the single fiber-reinforced composite groups, the 5.3% GL and 7.9% GL had the highest flexural strength and modulus; 5.3% PE was had the highest toughness. Hybrid FRC such as GL/PE, which showed the highest toughness and the flexural strength, was considered to be useful in preventing denture fractures clinically.
authors.affiliation: Department of Dental Biomaterials and Institute of Biomaterials · Implant, College of Dentistry, Wonkwang University, 344-2 Shinyong-dong, Iksan 570-749, Korea.
authors.forename: Sang-Hui
authors.initials: SH
authors.lastname: Yu
authors.forename: Yoon
authors.initials: Y
authors.lastname: Lee
authors.forename: Seunghan
authors.initials: S
authors.lastname: Oh
authors.forename: Hye-Won
authors.initials: HW
authors.lastname: Cho
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Oda
authors.forename: Ji-Myung
authors.initials: JM
authors.lastname: Bae
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D002244:Carbon; D000077482:Carbon Fiber; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D003819:Denture Bases; D055119:Elastic Modulus; D005898:Glass; D008422:Materials Testing; D009757:Nylons; D018583:Pliability; D011095:Polyethylenes
chemical_list: D000180:Acrylic Resins; D000077482:Carbon Fiber; D009757:Nylons; D011095:Polyethylenes; C009753:fiberglass; C111780:polyaramide; D002244:Carbon