The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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A Study of Marginal Leakage on Various Filling Materials

수종충전재의 변연누출에 관한 실험적 연구

  • Lee, Yoon-Sang (Dept. of Operative Dentistry, Graduate School, Seoul National University) ;
  • Kim, Hong-Suk (Dept. of Operative Dentistry, Graduate School, Seoul National University) ;
  • Park, Ka-Myung (Dept. of Operative Dentistry, Graduate School, Seoul National University)
  • 이윤상 (서울대학교 치과대학 보존학교실) ;
  • 김홍석 (서울대학교 치과대학 보존학교실) ;
  • 박가명 (서울대학교 치과대학 보존학교실)
  • Published : 1973.05.30
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Abstract

The authers have studied the marginal leakage on various filing materials : Composite resin, Polycarboxylate cement, Zinc phosphate cement, Silicate cement and Zinc-oxide eugenol cement, by means of penetration of 2% aquous methylene blue between cavity walls and filing materials at body temperature and at thermal changs in the range of 4~60℃ The results revealed as follows. 1) All the filling materials revealed the penetration of dye between cavity walls and filling materials. 2) Zinc-oxide eugenol cement was the most effective to prevent the dye penetration on the contrary silicate cement cases showed greatest leakage at 37℃ and at temperature changes in range of 4-60℃. 3) The composite resin showed moderate leakage either at 37℃ or at thermal changes 4) Marginal obstructions of polycarboxylate cement were unsatisfactory at 37℃ and at temperature changes.

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