Dental Journals
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A comparative study of apical leakage of Apexit, Ketac-Endo, and Diaket root canal sealers.
Ozata F, Onal B, Erdilek N, Turkun SL. - J Endod. 1999 Sep;25(9):603-4.
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The purpose of this study was to compare the apical leakage of Ketac-Endo, Apexit, and Diaket.
Fifty freshly extracted human maxillary anterior teeth were used. The anatomical crowns were
removed at the amelocemental junction, and step-back preparation of the roots canals was
performed with K-type files to size 40 using 2 ml of 5.25% NaOCl irrigant after each file
change. The roots were randomly divided into five groups of 10 roots each: three
experimental and two control groups. The experimental groups were as follows:
group 1, Apexit; group 2, Ketac-Endo; and group 3, Diaket. Root canals were
filled with one of the sealers and gutta-percha using lateral condensation.
After the specimens were stored in 100% humidity at 37 degrees C for 2 wk,
the roots were covered with two layers of nail polish and immersed in 2%
methylene blue for 7 days. Each tooth was split into two sections, and dye
penetration was evaluated independently by three examiners using a stereomicroscope
at x20 magnification. Mann-Whitney U analysis showed that there was no significant
difference between Apexit and Diaket (p > 0.05). However, there was significantly
more leakage with Ketac-Endo (p < 0.05).
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