title: Microleakage of light-cured glass-ionomer restorative materials.
abstract: The microleakage of three glass-ionomer restorative materials, one chemically cured and two light cured, was evaluated. Ten restorations of each material were placed, according to manufacturer's instructions, in Class V cavities in bovine incisors. All cavities were prepared with 90-degree cavosurface margins and were located at the cementoenamel junction. Sectioning of the teeth after thermocycling and immersion in methylene blue dye revealed only occasional slight leakage and no statistically significant difference among the three materials.
authors.affiliation: Division of Operative Dentistry, Department of General Dentistry, University of Tennessee, College of Dentistry, Memphis 38163, USA.
authors.forename: W W
authors.initials: WW
authors.lastname: Brackett
authors.forename: T D
authors.initials: TD
authors.lastname: Gunnin
authors.forename: W W
authors.initials: WW
authors.lastname: Johnson
authors.forename: J E
authors.initials: JE
authors.lastname: Conkin
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D005899:Glass Ionomer Cements / Q000737:chemistry*; D008027:Light; D008298:Maleates; D008422:Materials Testing; D012117:Resins, Synthetic
chemical_list: C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; D008298:Maleates; C081144:Photac-Fil; D012117:Resins, Synthetic; C040964:Ketac-Fil