대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제47권2호
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  • Pages.199-205
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  • 2009
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  • 0301-2875(pISSN)
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  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
권호 표지

지르코니아 코어의 표면처리가 비니어링 세라믹과의 전단결합강도에 미치는 영향

Effect of surface treatmet on the shear bond strength of a zirconia core to veneering ceramic

  • 최미선 (고려대학교 임상치의학 대학원, 고려대학교 임상치의학연구소) ;
  • 김영수 (고려대학교 임상치의학 대학원, 고려대학교 임상치의학연구소) ;
  • 서규원 (고려대학교 임상치의학 대학원, 고려대학교 임상치의학연구소) ;
  • 류재준 (고려대학교 임상치의학 대학원, 고려대학교 임상치의학연구소)
  • Choi, Mi-Sun (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Kim, Young-Soo (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Suh, Kyu-Won (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Ryu, Jae-Jun (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University)
  • 발행 : 2009.04.30
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초록

연구목적: 지르코니아 코어의 표면처리가 비니어링 세라믹과 전단결합강도에 미치는 영향을 알아보고자 한다. 연구 재료 및 방법: 지르코니아 블록(IPS e. max ZirCAD; Ivoclar vivadent, N=40, n=10, $10mm{\times}10mm{\times}3mm$)를 제조사의 지시에 따라 소성한 후 세척하였다. 대조군, 샌드블라스팅(4기압하 $50{\mu}m$ 알루미늄옥사이드) 처리군, 라이너(Zirliner; Ivoclar vivadent) 처리군, 샌드블라스팅과 라이너 처리군 네 개의 군으로 나누어 각 각 표면처리한 후 3 mm 두께로 세라믹(IPS e. max Ceram; Ivoclar vivadent)을 축조한다. 인스트론 만능시험기로 전단결합강도를 측정한 후, 일원변량 분산분석(One way ANOVA)과 $Scheff{\acute{e}}$검정법(P<.05)를 시행하였다. 결과: 지르코니아 코어와 세라믹 간 평균 전단결합강도는 샌드블라스팅과 라이너 동시 처리군에서 가장 높게 나타났으며, 지르코니아 코어에 샌드블라스팅과 라이너 단독 표면처리는 결합력에 통계적으로 유의한 차이를 보이지 않았으나(P>.05), 샌드블라스팅과 라이너 동시 표면처리는 두 재료 간 결합력에 통계적으로 유의한 차이를 보였다(P<.05). 결론: 지르코니아 코어에 샌드블라스팅과 라이너 동시 처리시 전단결합강도의 증가를 보였다.

Purpose: The purpose of this research was to evaluate the shear bond strength between zirconia core and veneer ceramic after surface treatment. Material and methods: Zirconia cores(N=40, n=10, $10mm{\times}10mm{\times}3mm$) were fabricated according to the manufacturers' instructions and ultrasonically cleaned. The veneering ceramics(thickness 3 mm) were built and fired onto the zirconia core materials. Four groups of specimens with different surface treatment were prepared. Group I: without any pre-treatment, Group II: treated with sandblasting, Group III: treated with liner, Group IV: treated with sandblasting and liner. The shear bond strength was tested in a universal testing machine. Data were compared with an ANOVA and $Scheff{\acute{e}}$ post hoc test(P=.05). Results: The shear bond strength of group VI was significantly higher than the other groups. Conclusion: Both mechanically and chemically treated simultaneously on zirconia core surface influenced the shear bond strength between the core and veneering ceramic in all-ceramic systems.

키워드

참고문헌

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