| Autor: |
Zetterqvist, L., Anneroth, G., Danin, J., Röding, K. |
| Předmět: |
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| Zdroj: |
International Endodontic Journal; Jan1988, Vol. 21 Issue 1, p1-8, 8p |
| Abstrakt: |
In a comparative investigation in vitro, leakage of retrograde fillings of amalgam, glass ionomer cement and heat-scaled gutta-percha was determined using a dye-leakage technique. The leakage was investigated both after 24 hours and after 1 year. A statistically significant higher degree of leakage of amalgam compared with glass ionomer cement was demonstrated both after 24 hours and alter 1 year in teeth with radiologically dense root fillings. Statistical analysis also showed a significantly higher incidence of leakage of retrograde fillings of amalgam when the root canals were not filled with gutta-percha compared with retrograde fillings of glass ionomer cement under the same conditions. It was also statistically verified that no changes in leakage appeared over a time period of 1 year, either for amalgam or for glass ionomer cement. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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