Effect of Multiple Sterilization Cycles on Time to Separation for VTaper Rotary NiTi Files

Abstract

While nickel titanium rotary files have greatly aided endodontic procedures (Short et al1997), they are not without their risks. [1] The risk of file separation is influenced by canalanatomy and file characteristics including design and manufacturing methods. [2] Nickeltitanium rotary files have two modes of failure, torsional fatigue and cyclic fatigue. [3, 4]Torsional fatigue is failure which occurs when the tip of the instrument binds and the coronalportion continues to rotate causing separation. Cyclic fatigue occurs when a file continuouslyrotates in a curved canal causing alternating tensile and compressive forces which ultimately leadto file fracture. [5]

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Document Details

Document Type
Technical Report
Publication Date
Jun 04, 2021
Accession Number
AD1183049

Entities

People

  • Jeffrey D. Loberg

Organizations

  • Uniformed Services University of the Health Sciences

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Alloys
  • Analysis Of Variance
  • Autoclaves
  • Body Temperature
  • Data Science
  • Dynamic Tests
  • Health
  • Heat Treatment
  • Information Science
  • Mechanical Properties
  • North Carolina
  • Physical Activity
  • Public Health
  • Resilience
  • Resistance
  • Root Canal
  • Stainless Steel
  • Statistical Analysis
  • Sterilization
  • Surface Properties
  • Test And Evaluation
  • Titanium
  • Titanium Alloys
  • United States

Readers

  • Battery Technology and Engineering
  • Powder metallurgy of Titanium alloys.