title: A novel composite-to-composite adhesive bond mechanism.
abstract: The purpose of this study was to determine if adhesion between various resin composites can occur by a chelation reaction of elemental ions. The surface composition of four commercially available resin composites (Beautifil II, Clearfil AP-X, Estelite Σ Quick and Solare) were measured by X-ray fluorescence analysis. Composite-to-composite adhesion with conventional silane coupling treatment was compared to self-etching primer treatment and evaluated by conventional shear bond strength testing. Our results detected Strontium and Barium (alkaline metallic earth ions) on the surface of Beautifil II and Clearfil AP-X resins. The shear bond strength values of self-etching primer treatments of Beautifil II and Clearfil AP-X was significantly higher than Estelite Σ Quick and Solare. Our data suggest that self-etching primer treatment is effective for adhesion of resin composites, depending on their filler composition, due to the chelation adhesion reaction between the acidic monomer and incorporated alkaline metal ions.
authors.affiliation: Department of Operative Dentistry, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, Japan. naotakeaki@mac.com
authors.forename: Naotake
authors.initials: N
authors.lastname: Akimoto
authors.forename: Tominori
authors.initials: T
authors.lastname: Sakamoto
authors.forename: Yuya
authors.initials: Y
authors.lastname: Kubota
authors.forename: Yoshie
authors.initials: Y
authors.lastname: Kondo
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Momoi
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000180:Acrylic Resins / Q000737:chemistry; D000268:Adhesiveness; D017609:Barium Compounds / Q000737:chemistry; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002264:Carboxylic Acids / Q000737:chemistry; D002614:Chelating Agents / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods*; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D033081:Shear Strength; D012821:Silanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D013314:Stress, Mechanical; D013324:Strontium / Q000737:chemistry; D013499:Surface Properties
chemical_list: D000180:Acrylic Resins; D017609:Barium Compounds; C470433:Beautifil composite resin; D002264:Carboxylic Acids; D002614:Chelating Agents; C112828:Clearfil AP-X; D003188:Composite Resins; D003764:Dental Materials; C507124:Estelite sigma; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D012821:Silanes; C501838:Solare; C102738:barium glass filler; C015897:glass ionomer; C029824:urethane dimethacrylate luting resin; C020946:triethylene glycol dimethacrylate; C017492:methacryloxypropyltrimethoxysilane; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; C005044:hydroxyethyl methacrylate; D012822:Silicon Dioxide; D013324:Strontium