Tensile fatigue of two composite cements bonding three base metal alloys to bovine enamel

J. G. Fitchie, L. D. Zardiackas, D. A. Givan, L. Anderson, Wyatt Franklin Caughman

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Tensile fatigue endurance limits were determined for three base metals (NiCr, NiCrBe, and CoCr) bonded to bovine enamel using two composite cements: a BisGMA/phosphate ester composite cement which relies on a sand-blasted metal surface, and a BisGMA composite luting cement which relies on electrolytically etched metal surfaces. Samples were tested to failure or to 106 cycles at 5 hz in Ringer's solution at 37°C, and endurance limits were determined using a two-point test strategy. SEM evaluation was performed on fractured samples to determine failure mode. Statistical analysis of the results showed no difference between cements when using NiCrBe; however when using CoCr, the Bis-GMA/phosphate ester cement produced greater values than the Bis-GMA cement that relied on electrolytical etching. The opposite result occurred when a NiCr alloy was tested with both cements. Evaluation of the results for each cement with the three different alloys showed statistical significant differences. SEM fracture analysis revealed a mixed failure pattern with apparent adhesive fracture from both the composite-enamel and composite-metal interfaces and cohesive failure throughout the cement.

Original languageEnglish (US)
Pages (from-to)28-32
Number of pages5
JournalDental Materials
Volume9
Issue number1
DOIs
StatePublished - Jan 1 1993

Fingerprint

Enamels
Dental Enamel
Fatigue
Cements
Metals
Bisphenol A-Glycidyl Methacrylate
Fatigue of materials
Composite materials
Esters
Phosphates
Adhesives
Durability
Scanning electron microscopy
Failure modes
Etching
Statistical methods
Sand

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

Cite this

Tensile fatigue of two composite cements bonding three base metal alloys to bovine enamel. / Fitchie, J. G.; Zardiackas, L. D.; Givan, D. A.; Anderson, L.; Caughman, Wyatt Franklin.

In: Dental Materials, Vol. 9, No. 1, 01.01.1993, p. 28-32.

Research output: Contribution to journalArticle

Fitchie, J. G. ; Zardiackas, L. D. ; Givan, D. A. ; Anderson, L. ; Caughman, Wyatt Franklin. / Tensile fatigue of two composite cements bonding three base metal alloys to bovine enamel. In: Dental Materials. 1993 ; Vol. 9, No. 1. pp. 28-32.
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