The Journal of the Korean dental association (대한치과의사협회지)
- Volume 11 Issue 5
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- Pages.337-340
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- 1973
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- 0376-4672(pISSN)
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- 2713-7961(eISSN)
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)
- Published : 1973.05.30
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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