Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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The study of Shear Bond Strength on recasting of non-beryllium non-precious alloy for Porcelain between Metal

베릴륨이 포함되지 않은 도재용착주조관용 비 귀금속 합금의 재사용에 따른 금속과 도재간의 전단결합강도에 관한 연구

  • Kim, So-Ri (Department of Dental Laboratory Science and Engineering Korea University) ;
  • Kim, Woong-Chul (Department of Dental Laboratory Science and Engineering Korea University) ;
  • Kim, Hae-Young (Department of Dental Laboratory Science and Engineering Korea University) ;
  • Kim, Ji-Hwan (Department of Dental Laboratory Science and Engineering Korea University)
  • 김소리 (고려대학교 대학원 보건과학과 치의기공 전공) ;
  • 김웅철 (고려대학교 대학원 보건과학과 치의기공 전공) ;
  • 김혜영 (고려대학교 대학원 보건과학과 치의기공 전공) ;
  • 김지환 (고려대학교 대학원 보건과학과 치의기공 전공)
  • Received : 2012.12.17
  • Accepted : 2013.03.12
  • Published : 2013.03.30
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Abstract

Purpose: This study aimed to investigate the shear bond strength for non-precious alloy castings without beryllium, which has been used repeatedly for economical reason. Methods: The Schmitz-Schulmeyer test method was used to evaluate the shear bond strength between the non-beryllium Ni-Cr alloy Vera Bond 2V(AlbaDent, Inc. USA) and the Ceramco 3(Dentstply, York, PA, USA) porcelain powder. The maximum loading and shear bond strength were measured. The average shear strength(MPa) was analyzed with the one-way ANOVA and the Tukey's test( =.05). The fracture specimens were examined using Microscope to determine the failure pattern. Results: The mean shear bond strengths(SD) in MPa were group A(100% new metal) control 28.72(3.31); group B(50% new + 50% reused) 27.28(1.13); group C(all reused) 26.61(5.47). Microscope examination showed that group A and B specimens presented mixed failure, and group C specimens showed adhesive failure. Conclusion: In conclusion, forward this non-precious alloy dose not contain beryllium for how should use a more systematic study and for future advanced research is performed giving effect to be considered desirable.

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References

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