The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Effects of Nonprecious Metallic Oxide on the Chemical Bonding Between Dental Alloy and Porcelain

비귀금속 산화물이 치과용 합금과 도재의 화학적 결합에 미치는 영향

  • Kim, Kwang-Nam (Dept. of Prosthetic Dent., College of Dent. Seoul Nat. University) ;
  • Cho, Sung-Am (Dept. of Prosthetic Dent., College of Dent. Kyung Book Nat. University)
  • 김광남 (서울대학교 치과대학 보철학교실) ;
  • 조성암 (경북대학교 치과대학 보철학교실)
  • Published : 1987.12.01
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Abstract

A study on the shear bonding strength between dental alloy and porcelain according to various kidns of sputtered metallic thin films was established by Ingtron universal testing machine, and the change of the elemental weight % at the surface of dental alloy was studied by E.D.S. The kind of metallic thin films were Al, Ni, In, Cr. Ti and Sn with $0.3{\mu}m$ thickness. The dental alloys were Verabond made by Aalba Dent. Co. and Degudent H manufactured by Degussa Co. The control groups were Verabond and Degudent H. The obtained results were as follows; 1. The shear bonding strength of Al plated sample was the strongest of all. 2. The shear bonding strength of Ni plated sample was stronger than that of Degudent H, Sn plated samples. 3. The shear bonding strength of Verabond was weaker than that of Al, Ni, In, Cr, plated samples. 4. After degassing, it is more weight % of Ni at the alloy surface of the Ni sputtered specimen than the Sn sputtered sample.

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