Effect of laser-etch on bond strengths of glass ionomers.
This study evaluated the bond strength between glass ionomer cements and laser-etched dentin. Extracted human molars were sectioned sagittally, creating a flat surface. Samples were shear tested on an Instron testing machine, and mean bond strengths were recorded; statistical analyses indicated no significant differences between the Ketac cements. The bond strengths of both Ketac cements were significantly decreased when applied to laser-etched dentin, but bond strengths of Fuji-II were substantially elevated compared with the control values.
Melendez
E J
EJ
Baylor College of Dentistry, Dallas, Texas.
Arcoria
C J
CJ
Dewald
J P
JP
Wagner
M J
MJ
D000134:Acid Etching, Dental / Q000379:methods*; D000704:Analysis of Variance; D002245:Carbon Dioxide; D001840:Dental Bonding; D003799:Dental Stress Analysis; D003804:Dentin / Q000528:radiation effects / Q000648:ultrastructure*; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D007834:Lasers; D008298:Maleates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D013314:Stress, Mechanical; D013499:Surface Properties
D005899:Glass Ionomer Cements; D008298:Maleates; C061499:Ketac-Bond; D002245:Carbon Dioxide; C037885:Fuji-ionomer; C040964:Ketac-Fil