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Journal of Dental Research
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A Technique for Characterizing Casting Behavior of Dental Alloys

R.W. Hinman

Research Associate, USN/NBS, Naval Dental School, Bethesda, Maryland 20814, Dental and Medical Materials, Polymers Division, National Bureau of Standards, Gaithersburg, Maryland 20899

J.A. Tesk

Dental and Medical Materials, Polymers Division, National Bureau of Standards, Gaithersburg, Maryland 20899

R.P. Whitlock

Dental Clinic, USN Submarine Base, Groton, Connecticut 06340

E.E. Parry

Research Associate, USN/NBS, Naval Dental School, Bethesda, Maryland 20814, Dental and Medical Materials, Polymers Division, National Bureau of Standards, Gaithersburg, Maryland 20899

J.S. Durkowski

Naval Dental School, Bethesda, Maryland 20814

A technique for characterizing casting behavior of dental alloys has been developed and tested. The method employs easily reproducible specimen patterns and uses equipment and procedures generally available in dental prosthetic laboratories. A castability value is arrived at by counting complete segments of a cast alloy grid.

Test results indicate that the castability evaluation procedure described can be a valuable aid in the laboratory for both selecting and using dental materials for producing cast restorations. The test method would also appear useful for the evaluation of products and techniques during research and development.

An absolute minimum for the castability value determined relative to clinical and laboratory efficacy has yet to be established.

REFERENCES

  • Asgar, K. (1973): Metal Castings in Dentistry. In: Dental Biomaterials - Research Priorities, L.W. Wachtel, Ed. Washington, DC: DHEW Publication No. (NIH) 74-548, pp. 27-44.
  • Barreto, M.T.; Goldberg, A.J.; Nitkin, D.A.; and Mun-Ford, G. (1980): Effect of Investment on Casting High-Fusing Alloys, J Prosthet Dent 44:504-507.[Medline] [Order article via Infotrieve]
  • Nielsen, J.P. and Shalita, S. (1977): Margin Casting Monitor, AADR Progr & Abst 56:No. 645.
  • Preston, J.D. and Berger, R. (1977): Some Laboratory Variables Affecting Ceramo-Metal Alloys, Dent Clin N Amer 21:717-728.
  • Smith, C.D.; Deckman, J.; and Fairhurst, C.W. (1980): An Alloy Castability and Adaptation Test, AADR Progr & Abst 59: No. 328.
  • Sorensen, S.E. and Ingersoll, C.E. (1966): A Method for Determining Fluidity of Casting Gold Alloys, IADR Progr & Abst 4S:No. 191.
  • Vincent, P.F.; Stevens, L.; and Basford, K.E. (1977): A Comparison of the Casting Ability of Precious and Non-precious Alloys for Porcelain Veneering, J Prosthet Dent 37:527-536.[CrossRef][Medline] [Order article via Infotrieve]

Journal of Dental Research, Vol. 64, No. 2, 134-138 (1985)
DOI: 10.1177/00220345850640020801
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[Abstract] [PDF]

This Article
Right arrow Abstract Freely available
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Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Hinman, R.W.
Right arrow Articles by Durkowski, J.S.
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PubMed
Right arrow PubMed Citation
Right arrow Articles by Hinman, R.W.
Right arrow Articles by Durkowski, J.S.
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