Publicação: Apical leakage after root canal filling with an experimental calcium hydroxide gutta-percha point
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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.
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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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Inglês
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Journal of Endodontics, v. 22, n. 2, p. 71-73, 1996.
