title: Fixation of magnet assembly to denture base using alternative resins.
abstract: The fixation strengths between conventional/modified magnetic assemblies and denture base resins were evaluated using six alternative resins. Magnetic assemblies with three different undercut wings were prepared. Soft lining materials with added PMMA resin polymer, two photopolymerization denture relining resins, an experimental resin, and a temporary filling resin were used to fix the magnetic assemblies to the denture bases. As a control, a commercially available magnetic assembly without undercut wings and a conventional autopolymerized resin were also prepared. After surface treatments, the magnetic assemblies were fixed using fixation resins, and tensile strengths and attractive forces were measured using an autography. The experimental resin and the temporary filling resin showed retentive forces comparable to those of conventional autopolymerized resins. Although the experimental resin demonstrated satisfactory fixation strengths, it should be necessary to improve its mechanical strength. The temporary filling resin could be used as a permanent fixation material.
authors.affiliation: Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine.
authors.forename: Shotaro
authors.initials: S
authors.lastname: Okayama
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Hidemasa
authors.initials: H
authors.lastname: Shimpo
authors.forename: Chikahiro
authors.initials: C
authors.lastname: Ohkubo
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003799:Dental Stress Analysis; D003819:Denture Bases; D003822:Denture Liners; D003781:Denture Retention / Q000295:instrumentation; D003828:Denture, Overlay; D059346:Magnets; D008422:Materials Testing; D019904:Polymethyl Methacrylate / Q000737:chemistry; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D000180:Acrylic Resins; D019904:Polymethyl Methacrylate