A Comparison of Two Tests to Determine the Castability of Dental Alloys

Abstract

This study compared castability values (Cv) in the Whitlock test with Cv obtained from a new castability monitor based on a dental restoration. Five metal ceramic casting alloys were induction cast with both a carbon-containing and a noncarbon phosphate-bonded casting investment to assess the reliability of the Whitlock mesh test in predicting alloy castability. Alloy performance in the Whitlock test did not parallel that of the replica coping test for all alloy- investment pairs as would be anticipated for a reliable castability monitor. In addition, the variability of the Whitlock castability values for some alloys was sufficient to question its usefulness for 'fine-tuning' the casting process with a specific alloy. (aw)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA219660

Entities

People

  • B. K. Moore
  • Carlos A. Munoz
  • Charles J. Goodacre
  • Ralph W. Phillips
  • W. P. Naylor

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Air Force
  • Analysis Of Variance
  • Base Metal
  • Classification
  • Dental Materials
  • Electron Microscopy
  • Gages
  • Materials
  • Measurement
  • Metals
  • Microscopes
  • Microscopy
  • Physical Properties
  • Pilot Studies
  • Schools
  • Security
  • Statistical Analysis

Fields of Study

  • Materials science

Readers

  • Aerial Unmanned Vehicle Swarm Micro Periodontal Dentistry.
  • Computational Modeling and Simulation
  • Metallurgy