The Effect of Orthodontic Model Fabrication Procedures on Gypsum Materials.

Abstract

This study examined four physical properties of three commercially available gypsum materials and three fabricated hybrids under five different model finishing conditions. In addition, a novel means of quantifying the time required to trim the models was presented. The study showed that the physical properties of the different materials react in a variable fashion depending upon the model finishing conditions. Non-commercially available hybrids had superior properties over orthodontic plaster in some conditions, but not all. Model trimming times were directly related to the density of the material, but an item of interest was the time benefits that could be achieved through the use of an improved trimming wheel recently placed on the market.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA254768

Entities

People

  • Benton J. Runquist

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Air Force
  • Analysis Of Variance
  • Calcium Compounds
  • Compressive Strength
  • Diamond Wheels
  • Fabrication
  • Laboratory Procedures
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Resistance
  • Standards
  • Statistical Analysis
  • Teeth
  • Tensile Strength
  • United States
  • Wear Resistance

Readers

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  • Pavement Materials Engineering.
  • Systems Analysis and Design