title: Efficacy of glyceryl methacrylate as a dentin primer.
abstract: The efficacy of pretreatment on the dentin surface with an aqueous solution of glyceryl methacrylate (GM) was examined by measuring the wall-to-wall polymerization contraction of a light activated composite in a cylindrical dentin cavity, and by measuring the tensile bond strength to a flat dentin surface. All of the tested dentin surfaces were cleaned with neutralized 0.5 M EDTA and treated with experimental primers, followed by a marketed dentin bonding agent and composite. The contraction gap formation of the composite was completely prevented by the application of the GM solution at concentrations of 25 and 35% in water. In contrast, half of the specimens treated with 35% HEMA and 35% HEMA containing 5% glutaraldehyde showed gap formation. Furthermore, a considerably high tensile bond strength of more than 18MPa was observed in the above described dentin bonding system.
authors.forename: H
authors.initials: H
authors.lastname: Chigira
authors.forename: A
authors.initials: A
authors.lastname: Manabe
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: D001840:Dental Bonding; D003736:Dental Cavity Lining; D003804:Dentin; D004852:Epoxy Compounds / Q000737:chemistry*; D005069:Evaluation Studies as Topic; D005976:Glutaral / Q000737:chemistry; D006801:Humans; D008689:Methacrylates / Q000737:chemistry*
chemical_list: D004852:Epoxy Compounds; D008689:Methacrylates; C005044:hydroxyethyl methacrylate; C007870:glycidyl methacrylate; D005976:Glutaral