Titanates and zircoaluminates as coupling agents for dental cements.
This study attempted to bond glass-ionomer and zinc phosphate cements to a dental ceramic with the aid of a coupling agent and appropriate surface preparation. Four luting agents were shear tested after thermocycling: a glass-ionomer cement with three titanate coupling agents, three zircoaluminate coupling agents, and a silane coupling agent; a light-activated glass-ionomer cement with a silane coupling agent; a zinc phosphate with a titanate coupling agent; and the manufacturer's resin/silane as control. The light-activated glass-ionomer cement/silane coupling agent had the highest mean strength (3.8 MPa) followed by the control (3.7 MPa) and glass-ionomer/carboxy zircoaluminate (2.4 MPa). These measures were significantly (P < .05) higher than those of glass-ionomer/silane, zinc phosphate, and other lower ranking groups. Light-activated glass-ionomer cement was successfully bonded to dental ceramics. Carboxy zircoaluminate showed good results for bonding conventional glass-ionomer cement.
Section of Restorative and Prosthetic Dentistry, College of Dentistry, The Ohio State University, Columbus 43210.
S F
SF
Rosenstiel
M C
MC
Van Putten
B M
BM
Culbertson
M A
MA
Johnson
D000535:Aluminum / Q000737:chemistry; D000704:Analysis of Variance; D002516:Ceramics; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements / Q000737:chemistry*; D003776:Dental Porcelain; D005899:Glass Ionomer Cements / Q000737:chemistry; D012117:Resins, Synthetic; D012821:Silanes / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D015036:Zinc Phosphate Cement / Q000737:chemistry; D015040:Zirconium / Q000737:chemistry*
D003738:Dental Cements; C047475:Dicor ceramic; D005899:Glass Ionomer Cements; D012117:Resins, Synthetic; D012821:Silanes; D003776:Dental Porcelain; D015036:Zinc Phosphate Cement; D015040:Zirconium; D000535:Aluminum; D014025:Titanium