title: Two-year clinical performance of a resin-modified glass-ionomer restorative material.
abstract: This study was a 2-year clinical evaluation of a conventional and a resin-modified glass-ionomer restorative material. Thirty-four restorations each of Ketac-Fil and Photac-Fil were placed without tooth preparation in cervical abrasion/abfraction lesions, primarily in premolar teeth. Patients ranged in age from 30 to 73 years, with a median age of 45 years. Isolation for the restorations was accomplished with cotton rolls. Restorations of both materials were retained at the rate of 93%, and both were comparable in appearance, receiving Alfa ratings for more than 85% of the restorations. One occurrence of secondary caries was observed for each material. No significant difference between the materials was observed for any evaluation category (exact binomial test, P > 0.05).
authors.affiliation: University of Tennessee-Memphis, College of Dentistry, Department of General Dentistry 38163, USA.
authors.forename: W W
authors.initials: WW
authors.lastname: Brackett
authors.forename: R O
authors.initials: RO
authors.lastname: Gilpatrick
authors.forename: W D
authors.initials: WD
authors.lastname: Browning
authors.forename: P N
authors.initials: PN
authors.lastname: Gregory
mesh_terms: D000328:Adult; D000368:Aged; D003116:Color; D003188:Composite Resins; D003731:Dental Caries / Q000209:etiology; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000009:adverse effects / Q000379:methods; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008298:Maleates; D008875:Middle Aged; D012117:Resins, Synthetic; D014072:Tooth Abrasion / Q000628:therapy; D019237:Tooth Cervix
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements; D008298:Maleates; C081144:Photac-Fil; D012117:Resins, Synthetic; C040964:Ketac-Fil