title: Clinical and SEM evaluations of three compomer systems in Class V carious lesions.
abstract: The aim of this study was to evaluate the clinical performance of three compomer systems: Compoglass F, Dyract AP and F2000 in Class V carious lesions. In addition, some restorations were placed in teeth scheduled for extractions in order to evaluate the compomer/dentin interface with the scanning electron microscope (SEM). A total of 175 Class V carious lesions having the gingival margins extending into cementum were restored with the tested materials. Each restoration was clinically evaluated immediately after placement, after 1 year and after 2 years using the USPHS criteria. After 1 year no loss of restoration was recorded. No significant difference between the materials was observed for any evaluation category. After 2 years, one Compoglass and two Dyract restorations were lost. No loss of F2000 was reported. No significant difference was reported between the tested materials and between the 2-year data and baseline ones. A well-defined hybrid layer as well as resin tags was seen at the interface between the tested materials and vital dentin.
authors.affiliation: Faculty of Dentistry, University of Tanta, Tanta, Egypt. aliebraheem@hotmail.com
authors.forename: A I
authors.initials: AI
authors.lastname: Abdalla
authors.forename: S E L
authors.initials: SE
authors.lastname: Mahallawy
authors.forename: C L
authors.initials: CL
authors.lastname: Davidson
mesh_terms: D000328:Adult; D016009:Chi-Square Distribution; D020770:Compomers; D003188:Composite Resins; D003731:Dental Caries / Q000628:therapy; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D003804:Dentin / Q000648:ultrastructure; D003806:Dentin Permeability; D005899:Glass Ionomer Cements; D006801:Humans; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged
chemical_list: C105428:Compoglass; D020770:Compomers; D003188:Composite Resins; C118368:F2000 cement; D005899:Glass Ionomer Cements; C400935:dyract-cem