Shear bond strengths of resin adhesive cements to dentin and Ni-Cr-Be alloy.

R. L. Cooley, Wayne W. Barkmeier, J. G. Evans

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Two adhesives, Super Bond and Panavia, were evaluated for shear bond strength to dentin. Twenty human teeth were used for each adhesive. Bonding sites were prepared in dentin (600 grit) and the adhesives applied according to the manufacturers' instructions. Bond strengths were determined with an Instron testing machine at 24 hours. Super Bond developed the strongest bond of 21.59 +/- 3.91 MPa. Panavia produced a lower bond strength of 2.68 +/- 1.45 MPa. Statistically, Super Bond was found to have a stronger bond than Panavia. The same two adhesives were applied to Ni-Cr-Be specimens and compared to Comspan. Twenty Rexillium III specimens were used for each adhesive at 24 hours and 20 for thermocycling. The metal specimens were ground flat (600 grit) and then air abraded with 50-micron aluminous oxide. The adhesives were applied to the metal surface in accordance with the manufacturers' instructions. One group was tested at 24 hours while the second group was tested after thermocycling (2,500 cycles at 6 degrees C to 60 degrees C). At 24 hours, Super Bond had a significantly stronger bond than the other materials. Comparison of the 24-hour to thermocycled bond strengths found Comspan had a significant increase in bond strength, Panavia had no significant change and Super Bond had a significant decrease in bond strength. After 2,500 thermocycles, Comspan, Panavia, and Super Bond were not significantly different in bond strength.

Original languageEnglish
Pages (from-to)117-120
Number of pages4
JournalJournal of esthetic dentistry
Volume4
Issue number4
StatePublished - Jul 1992

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Resin Cements
Shear Strength
Dentin
Adhesives
Metals
Oxides
Adhesive cement
nickel-chromium-beryllium alloy
Super-bond
Tooth
Air
Comspan

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Shear bond strengths of resin adhesive cements to dentin and Ni-Cr-Be alloy. / Cooley, R. L.; Barkmeier, Wayne W.; Evans, J. G.

In: Journal of esthetic dentistry, Vol. 4, No. 4, 07.1992, p. 117-120.

Research output: Contribution to journalArticle

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