Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
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The Effect of Surface Treatment on the Shear Bond Strength of Zirconia Ceramics to Resin Cemen

표면처리방법이 지르코니아와 레진시멘트 간의 전단결합강도에 미치는 영향

  • Kim, Kyung Soo (Department of Prosthodontics, College of Dentistry, Wonkwang University) ;
  • Kim, Jeong-Mi (Department of Dental Biomaterials, College of Dentistry, Wonkwang University) ;
  • Kim, Yu-Lee (Department of Prosthodontics, College of Dentistry, Wonkwang University)
  • 김경수 (원광대학교 치과대학 치과보철학교실) ;
  • 김정미 (원광대학교 치과대학 치과생체재료학교실) ;
  • 김유리 (원광대학교 치과대학 치과보철학교실)
  • Received : 2013.01.30
  • Accepted : 2013.03.25
  • Published : 2013.03.30
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Abstract

The aim of this study was to evaluate the effect of surface conditioning on the shear bond strength of zirconium-oxide ceramic to resin cement. A total of 120 disk-shaped zirconium-oxide ceramic blocks(3-TZP, Kyoritsu, Tokyo, Japan) were treated as follows: (1) no treatment; (2) sandblasting with 110 ${\mu}m$ aluminum-oxide(Al2O3); (3) particles tribochemical silica coating(RocatecTM, 3M ESPE). Then zirconium-oxide ceramic blocks were divided into six groups(10 for each group) and bonded with resin cement(Rely X U-200, 3M ESPE). (1) No treatment / No treatment (2) No treatment / Sandblasting with 110 ${\mu}m$ aluminum-oxide particles (3) No treatment / Silica coating (4) Sandblasting with 110 ${\mu}m$ aluminum-oxide particles / Sandblasting with 110 ${\mu}m$ aluminum-oxide particles (5) Sandblasting with 110 ${\mu}m$ aluminum-oxide particles / Silica coating (6) Silica coating / Silica coating. Each group was tested in shear bond strengths by UTM. Data analysis included one-way analysis of variance(ANOVA) and the Tukey Honestly Significant Difference test (P=0.05). Group that bonded two silica coated specimen showed a highest bond strength(P<0.05). Two silica coated surface conditioning group and air-abrasion and silica coated surface conditioning group showed significantly difference with other groups(P<0.05). Other groups had no significantly difference each other. Within the limitation of this study, Surface conditioning with Rocatec treatment to each side of specimen provided the highest bond strength.

본 연구의 목적은 각각 다른 표면처리를 한 지르코니아를 레진시멘트로 접착한 후 전단결합강도를 평가, 비교하는 것이다. 디스크 모양의 산화 지르코늄(3-TZP, Kyoritsu, Tokyo, Japan) 시편 120 개를 다음과 같이 표면처리 하였다. (1)110 ${\mu}m$ 산화 알루미나 분사 처리 (2)Silica coating(RocatecTM, 3M ESPE) (3)처리하지 않음 시편을 한 군당 10 개씩 총 6 개군으로 나누어 두 개의 지르코니아 시편을 자가 접착형 레진 시멘트(RelyX U-200, 3M ESPE)로 합착하였다. (1)처리하지 않음/처리하지 않음 (2)처리하지 않음/110 ${\mu}m$ 산화 알루미나 분사처리 (3)처리하지 않음/Silica coating (4)110 ${\mu}m$ 산화 알루미나 분사 처리/110 ${\mu}m$ 산화 알루미나 분사 처리 (5)110 ${\mu}m$ 산화 알루미나 분사 처리/Silica coating (6)Silica coating/Silica coating. 각 군의 전단결합강도를 만능시험기로 측정하였다. 표면처리에 따른 결합강도의 차이를 살펴보기 위해 일원변량분석(One-way ANOVA)을 이용하고 사후 분석으로 Tukey HSD test를 실시하였다. Silica coating을 한 두 개의 시편을 접착한 군이 가장 높은 결합 강도를 보였다(P<0.05). 표면 처리하지 않은 시편을 접착한 군과 두 개의 시편 모두 알루미나 분사 처리한 시편을 접착한 군은 서로 간에 유의한 차이를 보이지 않았으며, 그 외의 군에 비해서는 유의하게 낮았다(P<0.05). 본 연구의 결과에 따르면 Silica coating은 자가중합형 레진시멘트를 이용하여 접착한 두 지르코니아 간의 결합을 증진시키는데 효과적이었다.

Keywords

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