대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제38권4호
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  • Pages.273-280
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  • 2016
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
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캐드캠 시스템에서 사용되는 레진침투 지르코니아 블록의 접착양상과 파절강도

Bonding performance and fracture strength of resin-infiltrated zirconia blocks for CAD/CAM systems

  • Kim, Sa-Hak (Department of Dental Technology, School of Medical and Public Health, Kyungdong University) ;
  • Kim, Chong-Kyen (Department of Hotel Management, School of Tourism, Kyungdong University) ;
  • Kim, Wook-Tae (Department of Dental Technology & Science, Shinhan University) ;
  • Kim, Jae-Hong (Department of Dental Technology, School of Medical and Public Health, Kyungdong University)
  • 투고 : 2016.10.06
  • 심사 : 2016.12.15
  • 발행 : 2016.12.30
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초록

연구목적: 본 연구의 목적은 통상적으로 사용되는 글라스 세라믹과 고분자를 침투시킨 지르코니아 소재로 제작된 코어와 레진 시멘트의 굴곡강도 및 결합강도를 비교하여 하이브리드 기술이 치과 재료의 물리적인 성질에 미치는 영향을 조사하기 위함이다. 연구방법: 본 두 가지의 통상적으로 사용되는 세라믹소재[Vita PM9(GC) and I-JAM(ZC)] 와 다른 두 가지 하이브리드 세라믹 소재 [CELTRA Duo(ZRC) and Vita Enamic(RIZ)] 를 평가하였다. 각 그룹의 소재를 선택하여 결합강도와 굴곡강도, 그리고 scanning electron microscopy(SEM)을 이용하여 표면분석을 시행하였다. 도출된 결과 데이터는 일원분산분석(One-way ANOVA)을 통해 분석되었으며, 제1종 오류의 수준은 0.05로 하였다. 연구결과: RIZ 그룹에서 가장 높은 결합강도를 보였으며(p<0.05), ZC 그룹이 가장 낮은 결과를 보였다. 상대적으로 굴곡강도는 ZC 그룹이 가장 높은 수치를 나타내었으며, RIZ 그룹이 가장 취약했다. 연구결론: 하이브리드 기술로 제작된 소재(RIZ 그룹)는 우수한 레진 시멘트와의 결합강도를 보였지만, 그에 비해 굴곡강도는 상대적으로 통상적인 지르코니아 소재보다 비교적 취약한 결과를 보였다.

키워드

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