title: Six-year clinical evaluation of polyacid-modified composite resin used as fissure sealant.
abstract: The aim of this study was to evaluate retention and efficacy of polyacid-modified composite resin used as fissure sealant (Variglass V.L.C.) after six years. Three-hundred and seventy permanent first molars were sealed. After six years, 42.0% of the original group was re-examined and the sealant was found to be totally present in 3.4%, partially present in 16.2% and absent in 70.4% of the previously sealed occlusal surfaces. During the 6 years period, 9.5% of the sealed surfaces became carious, 25.0% were filled and 65.5% remained sound. Although the retention rate of the material has been very low, it appears to have prevented dental caries in 2/3 of the teeth evaluated after six years of placement.
authors.affiliation: Department of Community Dentistry, School of Dentistry, University of Campinas, Piracicaba, São Paulo, Brazil. vpardi@uol.com.br
authors.forename: Vanessa
authors.initials: V
authors.lastname: Pardi
authors.forename: Antonio Carlos
authors.initials: AC
authors.lastname: Pereira
authors.forename: Fábio Luiz
authors.initials: FL
authors.lastname: Mialhe
authors.forename: Marcelo de Castro
authors.initials: Mde C
authors.lastname: Meneghim
authors.forename: Gláucia Maria Bovi
authors.initials: GM
authors.lastname: Ambrosano
mesh_terms: D000180:Acrylic Resins; D002648:Child; D020770:Compomers; D003731:Dental Caries / Q000517:prevention & control*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D005899:Glass Ionomer Cements; D006801:Humans; D008137:Longitudinal Studies; D010895:Pit and Fissure Sealants
chemical_list: D000180:Acrylic Resins; D020770:Compomers; D005899:Glass Ionomer Cements; D010895:Pit and Fissure Sealants; C081982:VariGlass VLC