Tensile fatigue of resin cements to etched metal and enamel

L. D. Zardiackas, D. J. Caldwell, W. F. Caughman, D. L. Lentz, R. W. Comer

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

The purpose of this study was to compare the tensile adhesive fatigue behavior of 2 composite adhesives used in the resin-bonded bridge technique to both enamel and a base metal alloy. Samples were tested to failure or to a maximum of 106 cycles. The practical endurance limit for both was determined and the fracture surfaces were evaluated using SEM. The nature of the fatigue failure of the 2 cements varied. The higher viscosity cement exhibited failure primarily due to tag pull out from the etched enamel. This occurred at significantly lower load levels as compared to the lower viscosity cement. The lower viscosity cement exhibited both adhesive and cohesive failure at higher load levels. The majority of fatigue failures in the lower viscosity material occurred at the composite/bonding agent interface or through the material itself.

Original languageEnglish (US)
Pages (from-to)163-168
Number of pages6
JournalDental Materials
Volume4
Issue number3
DOIs
StatePublished - Jun 1988

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Keywords

  • Maryland bridge cements
  • fatigue fracture
  • resin cements

ASJC Scopus subject areas

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

Cite this

Zardiackas, L. D., Caldwell, D. J., Caughman, W. F., Lentz, D. L., & Comer, R. W. (1988). Tensile fatigue of resin cements to etched metal and enamel. Dental Materials, 4(3), 163-168. https://doi.org/10.1016/S0109-5641(88)80013-7