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Thermomechanical Analysis of Dental Waxes in the Penetration Mode

  • John M. Powers
  • Robert G. Craig

Abstract

Differential thermal analysis (DTA) of commercial and dental waxes has established the presence of solid-solid as well as melting transitions1. The phase changes associated with these transition temperatures can be expected to influence the mechanical behavior of wax. Flow under load is an important property of waxes used in dentistry and is known to vary with time and temperature2,3 however, the method used in specification testing for measuring flow by loading a specimen at a constant temperature for a given interval of time does not directly indicate the relationship between flow and the phase(s) present in the wax.

Keywords

Differential Thermal Analysis Differential Thermal Analysis Curve High Stress Level Endothermic Transition Initial Penetration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R.G. Craig, J.M. Powers and F.A. Peyton, J. Dent. Res., 46, 1090 (1967).CrossRefGoogle Scholar
  2. 2.
    R.G. Craig, J.D. Eick and F.A. Peyton, J. Dent. Res., 44, 1308 (1965).CrossRefGoogle Scholar
  3. 3.
    R.G. Craig, J.D. Eick and F.A. Peyton, J. Dent. Res., 45, 397 (1966).CrossRefGoogle Scholar
  4. 4.
    Guide to Dental Materials and Devices, American Dental Association, Chicago, Illinois, 1972–73.Google Scholar
  5. 5.
    Midas-Mean Test. Statistical Research Laboratory, The University of Michigan, Ann Arbor, 1972.Google Scholar
  6. 6.
    R. G. Craig, J.M. Powers and F.A. Peyton, J. Dent. Res., 50, 450 (1971).CrossRefGoogle Scholar
  7. 7.
    J.M. Powers and R.G. Craig, J. Dent. Res., scheduled for publication in March-April, 1974.Google Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • John M. Powers
    • 1
  • Robert G. Craig
    • 1
  1. 1.School of DentistryThe University of MichiganAnn ArborUSA

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