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Apical leakage after root canal filling with an experimental calcium hydroxide gutta-percha point
Universidade Estadual Paulista (UNESP)
This study was an in vitro analysis of the apical seal of root canals filled with an experimental calcium hydroxide gutta-percha point. One hundred and ten recently extracted human permanent teeth with a single root were used. The root canals were biomechanically prepared, and some received a dressing of calcium hydroxide for 7 days. Root canals not dressed were filled by the lateral condensation technique with either regular gutta-percha or calcium hydroxide gutta-percha points. The dressed root canals were filled with the same sealers and regular gutta-percha points. The specimens were placed into a 2% methylene blue dye solution under vacuum, and the apical leakage was linearly evaluated. The experimental groups with calcium hydroxide dressing and the one with calcium hydroxide gutta-percha points exhibited significantly (p < 0.05) less leakage than the groups filled with regular gutta-percha points. The results obtained indicated that calcium hydroxide guttapercha points produced an improvement in the apical sealing quality of the root canal filling. Copyright © 1996 by The American Association of Endodontists.
Issue Date: 
Journal of Endodontics, v. 22, n. 2, p. 71-73, 1996.
Time Duration: 
  • biomedical and dental materials
  • calcium hydroxide
  • Grossman sealer
  • gutta percha
  • root canal filling material
  • zinc oxide eugenol
  • analysis of variance
  • comparative study
  • endodontics
  • human
  • methodology
  • tooth disease
  • Analysis of Variance
  • Calcium Hydroxide
  • Dental Leakage
  • Gutta-Percha
  • Humans
  • Root Canal Filling Materials
  • Root Canal Irrigants
  • Root Canal Obturation
  • Zinc Oxide-Eugenol Cement
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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