Microleakage between glass-ionomer cement and composite resins.
This study investigated the microleakage between glass-ionomer cement and Silux or Herculite with and without Scotchbond 2. Cavities were prepared in polymerized composite resin samples and "restored" with a glass ionomer cement with and without Scotchbond 2. The samples were thermocycled and immersed in 0.05% crystal violet solution for 2 hours, then embedded in clear casting resin, sectioned, and examined with an optical microscope. The results indicated that a high degree of dye penetration was found in samples of GC and Silux, and GC and Herculite without Scotchbond 2. The use of Scotchbond 2 significantly reduced the degree of dye penetration, but did not completely eliminate dye penetration.
Chan
K C
KC
University of Iowa, College of Dentistry, Iowa City.
D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003763:Dental Leakage / Q000517:prevention & control*; D003793:Dental Restoration, Permanent / Q000379:methods*; D003804:Dentin; D005899:Glass Ionomer Cements; D008422:Materials Testing; D019279:Resin Cements
D003188:Composite Resins; D005899:Glass Ionomer Cements; D019279:Resin Cements; C065770:Herculite XR; C067788:scotchbond 2; D017438:Bisphenol A-Glycidyl Methacrylate