Fatigue failure parameters of IPS-empress porceiain

Michael L. Myers, Isnet W. Ergle, Carl W. Fairhurst, Robert D. Ringle

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


The purpose of this study was to determine the stress corrosion fatigue characteristics of a heat-pressed ceramic material, IPS-Empress, Disks (1 mm thick, 12 mm in diameter) were prepared, polisiled, and subjected to dynamic loading at multiple constant stressing rates. Fatigue tests were conducted in a circulating bath using a biaxial flexure test. The inert strength of the samples was determined in oil. The mean fracture strength for the inert tests was 135,7 MPa, Linear regression analysis of log fracture strengths vs log time to tathure was performed to obtain tatigue parameters. For IPSEmpress the n value was 31 (SE 3,5) and σ10 was 83,3 MPa (SE 1,3 MPa).

Original languageEnglish (US)
Pages (from-to)549-553
Number of pages5
JournalInternational Journal of Prosthodontics
Issue number6
StatePublished - 1994

ASJC Scopus subject areas

  • Oral Surgery


Dive into the research topics of 'Fatigue failure parameters of IPS-empress porceiain'. Together they form a unique fingerprint.

Cite this