대한의용생체공학회:의공학회지 (Journal of Biomedical Engineering Research)

  • 제18권1호
  • /
  • Pages.1-8
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  • 1997
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  • 1229-0807(pISSN)
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  • 2288-9396(eISSN)
대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
권호 표지

광중합형 복합레진의 압축강도에 미치는 레진과 필러의 영향

The Effect or Resin ann ruler Type on the compressive strength of Light-activated Composite Resins

  • 원대희 (전북대학교 공과대학 금속공학과, 광양전문대학교 제철금속과, 전북대학교 치과대학 치과재료학교실 및 치의학연구소)
  • 발행 : 1997.03.01
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초록

This study was performed to evaluate the effect of resin and filler type on the compressive strength of light-activated composite resins. Experimental composite resins containing either amorphous spherical silica or crushed quartz in two matrix resins of BisGMA/TEGDMA and UTMA/TEGDMA were prepared and the specimens of 3 m in diameter and 6m in length were made. Compressive test was subjected to a crosshead speed of 0.5 mm/min, and the fracture surFaces were examined by SEM. The compressive strength of UTMA-based composite resin was higher than that of BisGMA-based composite resin. The loading rate of spherical silica was higher than that of crushed silica when the size dis- tribution of fillers was same. Strength decrease of Bis-GMA-based composite resin was severer than that of UTMA-based composite resin in a $37^{\circ}$c water environment. Fracture surface showed that the composite resin failure developed along the matrix resin and the filler/resin interface region.

키워드

참고문헌

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