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On the development of life prediction methodologies for the failure of human teeth

  • R. K. Nalla
  • , V. Imbeni
  • , J. H. Kinney
  • , S. J. Marshall
  • , R. O. Ritchie

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Human dentin is known to be susceptible to failure under cyclic loading. Surprisingly, there are few reports that quantify the effect of such loading, considering the fact that a typical tooth experiences a million or so loading cycles annually. In the present study, a systematic investigation is described of the effects of prolonged cyclic loading on human dentin in a simulated physiological environment. In vitro stress-life (S/N) data are discussed in the context of possible mechanisms of fatigue damage and failure. Stiffness loss data collected in situ during these tests are used to calculate crack-growth velocities and the fatigue thresholds, and are presented as plots of the crack-propagation rates (da/dN) as a function of the stress-intensity range (ΔK). The S/N and da/dN-ΔK data are discussed in light of a framework for a fracture mechanics-based methodology for the prediction of the fatigue life of human teeth.
Original languageEnglish
Title of host publicationMaterials Lifetime Science & Engineering
EditorsP.K. Liaw, R.A. Buchanan, D.L. Klarstrom, R.P. Wei, D.G. Harlow, P.F. Tortorelli
PublisherJohn Wiley & Sons
Pages137-145
ISBN (Electronic)9781118788035
ISBN (Print)9781118000427
DOIs
Publication statusPublished - Mar 2003
Externally publishedYes
EventMaterials Lifetime: Science and Engineering - San Diego, CA, United States
Duration: 2 Mar 20036 Mar 2003

Publication series

NameTMS Annual Meeting

Conference

ConferenceMaterials Lifetime: Science and Engineering
PlaceUnited States
CitySan Diego, CA
Period2/03/036/03/03

Research Keywords

  • Collagen fibrils
  • Cyclic loading
  • Fracture toughness
  • Hank's balanced salt solution
  • Physiological environment

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