Comparative in vivo analysis of the sealing ability of three endodontic sealers in post-prepared root canals

Aim  To compare the sealing ability of the endodontic sealers AH Plus, Sealer 26 and Endofill in premolar teeth of dogs exposed to the oral cavity after post‐preparation. Methodology  Forty teeth with two canals each underwent root canal cleaning and shaping. Before filling, the canals were randomly...

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Bibliographic Details
Published in:International endodontic journal 2003-12, Vol.36 (12), p.857-863
Main Authors: Kopper, P. M. P., Figueiredo, J. A. P., Della Bona, A., Vanni, J. R., Bier, C. A., Bopp, S.
Format: Article
Language:English
Subjects:
Analysis of Variance
Animals
Bismuth
Calcium Hydroxide
Coloring Agents
Dental Leakage - diagnosis
Dentistry
Dogs
endodontic sealer
Epoxy Resins
leakage
root canal filling
Root Canal Filling Materials
Root Canal Obturation - methods
Statistics, Nonparametric
Tooth Apex
Zinc Oxide-Eugenol Cement
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Summary:Aim  To compare the sealing ability of the endodontic sealers AH Plus, Sealer 26 and Endofill in premolar teeth of dogs exposed to the oral cavity after post‐preparation. Methodology  Forty teeth with two canals each underwent root canal cleaning and shaping. Before filling, the canals were randomly distributed into three groups according to the sealer to be used: Group 1 – AH Plus; Group 2 – Sealer 26; and Group 3 – Endofill (Dentsply, Indústria e Comércio Ltda.). Immediately after filling, the gutta percha and sealer were partially removed from the canals, leaving material only in the apical third of the root. The teeth were temporarily sealed with glass ionomer sealer for 72 h to ensure setting. The coronal seal was then removed and the canals were exposed to the oral cavity for 45 days. The animals were euthanased and their mandibles and maxillae were removed. After abundant irrigation with distilled water, the canals were dried and filled with India ink. The teeth were sealed again for 96 h before extraction. The roots of the extracted premolars were separated and stored in labelled test tubes. The roots were cleared and the extent of dye penetration was measured with a 20× stereoscopic magnifying lens. Results  Statistical analysis revealed that there were significant differences between the sealers studied (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2003.00730.x