치위생과학회지 (Journal of dental hygiene science)

  • 제10권6호
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  • Pages.445-450
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  • 2010
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  • 1598-4478(pISSN)
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  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지

섬유의 종류와 조합이 열중합 의치상 레진의 강화에 미치는 영향

Effect of Fiber Type and Combination on the Reinforcement of Heat Polymerized Denture Base Resin

  • 유상희 (원광대학교 치과대학 치과생체재료학교실) ;
  • 김영임 (전주비전대학 치위생과)
  • Yu, Sang-Hui (Dept. of Dental Biomaterials, College of Dentistry, Wonkwang University) ;
  • Kim, Young-Im (Dept. of Dental Hygiene, Vision College of Jeonju)
  • 투고 : 2010.11.10
  • 심사 : 2010.12.13
  • 발행 : 2010.12.31
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초록

본 연구에서는 열중합 의치상 레진에 유리 섬유, 아라미드 섬유, 폴리에틸렌 섬유를 2.6%, 5.3% 부피비로 첨가하여 섬유의 종류에 따른 강화효과를 평가하고, 각 섬유를 두 가지로 조합한 hybrid FRC를 제작하여 동일 함량의 단독 섬유 FRC보다 굴곡성질이 더 우수한지 평가하고자 하였다. 단독 섬유 FRC에서는 5.3% 부피비의 GL, PE 섬유군의 굴곡강도가 높게 나타났다. 두 가지 섬유 조합FRC의 굴곡강도는 단독 섬유 FRC보다 증가하는 양상을 보였으나, 5.3% GL, PE 섬유군과 유의한 차이가 없었다. 단독 섬유 FRC의 굴곡계수는 5.3% 부피비의 GL 섬유군이 가장 높게 나타났다. 두 가지 섬유 조합FRC의 굴곡계수는 단독 섬유 FRC의 5.3% GL 섬유군보다 높게 나타나 유의한 차이를 보였다. 열중합 의치상 레진의 강화를 위해 섬유를 단독으로 이용할 경우 5.3% 부피비로 첨가한 유리 섬유가 굴곡강도와 굴곡계수 면에서 효과적으로 적용될 수 있을 것으로 본다. 두 가지 섬유 조합FRC의 경우 굴곡강도 면에서는 강화효과가 크지 않았지만, 굴곡계수 면에서 볼 때 유리섬유를 하방에 아라미드 섬유를 그 상방에 위치 시킨 조합을 의치상의 강화에 효과적으로 적용할 수 있을 것으로 본다.

The aim of this study was to evaluate the effect according to the fiber type and combination on the reinforcement of heat-polymerized denture base resin. The heat-polymerized resin(Vertex RS, Dentimax, Netherlands) was used in this study. Glass fiber(GL; ER 270FW, Hankuk Fiber Glass, Korea), polyaromatic polyamide fiber(PA; aramid; Kevlar-49, Dupont, U.S.A.) and ultra high molecular weight polyethylene fiber(PE, polyethylene; P.E, Dong Yang Rope, Korea) were used to reinforce the denture base resin specimens. The final size of test specimen was $64mm{\times}10mm{\times}3.3mm$. The specimens of each group were stored in distilled water at $37^{\circ}C$ for 50 hours before measurement. The flexural strength and flexural modulus were measured by an universal testing machine(Z020, Zwick, Germany) at a crosshead speed of 5 mm/min in a three-point bending mode. In this study, all fibers showed reinforcing effects on denture base resin(p<0.05). In terms of flexural strength and flexural modulus, glass fiber 5.3 vol.% showed most effective reinforcing effect on heat polymerized denture base resin. For flexural modulus, PA/GL was the highest in denture base resin specimen for hybrid FRC using two combination (p<0.05). Glass fiber 5.3 vol.% and PA/GL are considered to be applied effectively in reinforcing the heat polymerized denture base resin.

키워드

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