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Apical leakage in canals filled with glass ionomer sealer and gutta‐percha after dentin conditioning
Author(s) -
Raiden G.,
Olguín A.,
Peralta G.,
Posleman I.,
Lagarrigue G.
Publication year - 1997
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/j.1600-9657.1997.tb00058.x
Subject(s) - gutta percha , dentistry , glass ionomer cement , dentin , root canal , grossman , chemistry , distilled water , materials science , medicine , chromatography , economics , keynesian economics
This study assessed in vitro apical leakage in root canals filled with gutta‐percha and Ketac‐Endo using different dentin conditioning and filling techniques. The root canals of 63 single‐rooted teeth were instrumented and randomly divided into the following four groups: group A – canals were irrigated with 25% tannic: acid and filled with Ketac‐Endo and a standardized gutta‐percha cone; group B – canals were irrigated with 1% NaOCl and filled as in group A; group C – canals were irrigated with 25% tannic acid and filled with Ketac‐Endo and a chloroform‐softened gutta‐percha cone adapted to the canal walls; group D – canals were irrigated with 1 % NaOCl and filled with Grossman's sealer and laterally condensed gutta‐percha. After storage for 72 hours at 37°C and 100% humidity, the gutta‐percha was removed to a level 4 mm short of the working length, using a Peeso reamer. Teeth were immersed in India ink for 48 hours and cleared, and the coronal extent of dye penetration examined under a binocular dissecting microscope at × 15 magnification. The mean value of leakage for group A was 0.86 mm, for group B 2.23 mm, for group G 2.34 mm, and for group D 0.55 mm. Tukey's multiple comparison lest disclosed significant differences ( P <0.05) between group A and groups B and C, and between group D and groups B and C. Differences between groups A and D, as well as between groups B and C, were not significant.