Effect of multiple firing on the bond strength of selected matched porcelain-fused-to-metal combinations.
In this study two different opaque porcelain-metal combinations were evaluated for planar shear bond strength. Samples were tested after one, three, five, seven, and nine different firing cycles to evaluate the effect of repeated firing on shear bond strength. For the combination of Will Ceram/W1 and Vita/Olympia materials, no statistical difference was observed either between materials or after repeated firing. For apparently well-matched porcelain-metal combinations, no significant reduction in bond strength occurs during normal firing of the opaque porcelain to the metal.
Department of Restorative Dentistry, Tufts University, School of Dental Medicine, Boston, Mass.
J G
JG
Stannard
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L
Marks
K
K
Kanchanatawewat
D000704:Analysis of Variance; D003722:Dental Alloys; D001840:Dental Bonding; D003735:Dental Casting Technique; D003776:Dental Porcelain; D006358:Hot Temperature; D008422:Materials Testing; D013718:Tensile Strength
D003722:Dental Alloys; D003776:Dental Porcelain