Tensile bond strength of composite luting cements to metal alloys after various surface treatments
<b>Aims:</b> To evaluate the effects of two different surface treatments and bonding agents on tensile bond strength between a Co-Cr and a Ni-Cr cast alloy and two resin-luting cements. <b> Materials and Methods:</b> Two hundred and forty alloy samples were cast and subjected...
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| Main Authors: | , , |
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| Format: | Book |
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Wolters Kluwer Medknow Publications,
2009-01-01T00:00:00Z.
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| Summary: | <b>Aims:</b> To evaluate the effects of two different surface treatments and bonding agents on tensile bond strength between a Co-Cr and a Ni-Cr cast alloy and two resin-luting cements. <b> Materials and Methods:</b> Two hundred and forty alloy samples were cast and subjected to surface treatments such as sandblasting, chemical etching, and sandblasting plus chemical etching. Panavia F and CandB cement were used as cementing mediums. The etching qualities were examined by a stereooptic microscope. Failure surfaces were examined throughout scanning electron microscopy. The data were evaluated using statistical methods, namely analysis of variance and multiple comparison test (Tukey HSD). <b> Results: </b> Significant differences were found in the bonding provided by the various cements (P < 0.001) and also type of surface treatments (P < 0.001). For all groups, sandblasted surfaces showed the highest bond strength values. There was no significant difference between the Cr-Co and the Cr-Ni alloys (P > 0.05). <b> Conclusions:</b> Panavia F showed higher tensile strength and the sandblasted samples possessed higher tensile strength. |
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| Item Description: | 0970-9290 1998-3603 |