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Related Experiment Videos

[Variables effecting casting accuracy of quick heating casting investments]

H Takahashi1, H Nakamura, N Iwasaki

  • 1Department of Dental Technology I, Faculty of Dentistry, Tokyo Medical and Dental University.

Kokubyo Gakkai Zasshi. the Journal of the Stomatological Society, Japan
|June 1, 1994
PubMed
Summary
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New dental investments offer quick heating casting procedures. Thicker liners and longer wait times increase casting size, requiring careful control for reproducible results.

Area of Science:

  • Dental materials science
  • Casting technology

Context:

  • New "quick heating" investment materials are available in Japan.
  • These materials reduce the total casting procedure time to one hour.

Purpose:

  • To evaluate the effect of casting liner thickness and waiting time on casting accuracy with new investments.
  • To assess the impact of these variables on marginal discrepancies and crown size.

Summary:

  • Increasing casting liner thickness and extending the waiting time before furnace placement resulted in larger cast crowns.
  • Marginal discrepancies were measured using a stainless-steel die with an 8-degree convergence angle.

Impact:

  • New investments enable efficient, short-time casting procedures.

Related Experiment Videos

  • Precise control over casting conditions is crucial for achieving reproducible, accurate dental castings.