Marginal leakage around V-shaped cavities restored with glass-ionomer cements: an in vitro study.
The object of this investigation was to assess the degree of marginal leakage around V-shaped cervical glass-ionomer cement restorations and compare it to that around composite resin restorations. Three different glass-ionomer cements and one composite resin control were assessed by means of dye penetration. Severe microleakage at the occlusal margins was found in 70% of the glass-ionomer cement restorations, but in only 10% of the composite resin restorations. A considerable amount of dye penetration was observed at the cervical margins of all restorations, including the controls. None of the glass-ionomer cements tested showed superiority in preventing marginal leakage occlusally or gingivally.
Zyskind
D
D
Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Frenkel
A
A
Fuks
A
A
Hirschfeld
Z
Z
D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D003737:Dental Cavity Preparation; D003738:Dental Cements; D003763:Dental Leakage / Q000517:prevention & control*; D005899:Glass Ionomer Cements; D006801:Humans; D008298:Maleates; D019279:Resin Cements; D012823:Silicate Cement
D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D008298:Maleates; D019279:Resin Cements; C054101:ChemFil II; D012823:Silicate Cement; D017438:Bisphenol A-Glycidyl Methacrylate; C040964:Ketac-Fil; C041330:Scotchbond