In vivo resistance of coronally induced bacterial ingress by an experimental glass ionomer cement root canal sealer

被引:30
作者
Friedman, S
Komorowski, R
Maillet, W
Klimaite, R
Stomat
Nguyen, HQ
Torneck, CD
机构
[1] Univ Toronto, Fac Dent, Toronto, ON M5G 1G6, Canada
[2] Dalhousie Univ, Fac Dent, Dept Endodont, Halifax, NS B3H 3J5, Canada
关键词
D O I
10.1097/00004770-200001000-00001
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The resistance of an experimental sealer (KT-308) to bacterial ingress was assessed in six beagle dogs. In four mandibular premolars per dog, canals were prepared, filled with condensed gutta-percha and either KT-308 or Roth 801 cement (n = 24 roots), and the pulp chambers inoculated with plaque. Two additional premolars per dog were similarly root-filled, but not inoculated (n = 12 and 11, respectively). One incisor per dog was inoculated, but not root-filled (n = 6), Dogs were terminated after 6 months, and jaw blocks were retrieved and processed for light microscopic examination of the periapical tissues. Inflammation about the inoculated roots was significantly lower (p < 0.03) for KT-308 (17%) than Roth 801 cement (46%), Inflammation about the noninoculated roots did not differ significantly between KT-308 (8%) and Roth 801 cement (36%). This study demonstrated a better functional efficacy of KT-308 than of Roth 801 cement, and validated this in vivo model for assessment of root filling materials.
引用
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页码:1 / 5
页数:5
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