title: Effect of the self etching dentin primers on the bonding efficacy of a dentin adhesive.
abstract: The efficacy of marketed and experimental self etching dentin primers which contained dicarboxylic acids or their esterified salts diluted in 35% hydroxyethylmethacrylate (HEMA) solution were studied by measuring the wall-to-wall polymerization contraction of the light curing composite in the cylindrical dentin cavity and the tensile bond strength to the flat dentin surface. In both of the measurements, a marketed dentin bonding agent and resin monomer was applied after the treatment with experimental primers and a marketed primer, respectively. It was revealed that two experimental primers composed of the methacryloxyethyl-succinate or methacryloxyethyl-phthalate and HEMA, exhibited a remarkable effect on the bonding efficacy of a dentin adhesive employed in this study. A marketed primer which contained maleic acid and HEMA could not improve the bonding between the resin and dentin cavity wall although a significantly high bonding strength (11.9 +/- 5.7 MPa) was obtained after 24 hours.
authors.forename: H
authors.initials: H
authors.lastname: Chigira
authors.forename: T
authors.initials: T
authors.lastname: Koike
authors.forename: T
authors.initials: T
authors.lastname: Hasegawa
authors.forename: K
authors.initials: K
authors.lastname: Itoh
authors.forename: S
authors.initials: S
authors.lastname: Wakumoto
authors.forename: T
authors.initials: T
authors.lastname: Hayakawa
mesh_terms: D000134:Acid Etching, Dental; D001840:Dental Bonding; D003738:Dental Cements; D003804:Dentin; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates
chemical_list: D003738:Dental Cements; D008689:Methacrylates