Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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A study on the marginal fitness to reuse with a Au-Pt-Pd alloy for porcelain fused to metal crown

도재용 금합금 재사용에 따른 변연 적합도에 관한 연구

  • Moon, Hee-Kyung (Dept, of Dental laboratory Technology, Jin Ju Health College)
  • 문희경 (진주보건대학 치기공과)
  • Received : 2010.01.26
  • Accepted : 2010.03.31
  • Published : 2010.03.30
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Abstract

This experimental study was to determine the fitness in each cervical margin of reusing porcelain gold alloy. The gold alloy used in this experimental study was a Au-Pt-Pd alloy (BDCG-898, Bukwang Inc, Korea) for the fabrication of porcelain fused to metal crown. Twenty-five copings were divided into the five groups. And the group A, B, C, D and E were cording successively according to the frequency of reuse to five times. Each specimen was reused without adding new metal. The experimental results were as follows: 1. The group A, B, C showed good fitness in each cervical margin. 2. The group D got good fitness in labio and linguo cervical margin, but the mesio and disto cervical margin showed more than $40{\mu}m$ 3. The group E showed worse fitness than the other groups in each cervical margin.

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References

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