Abstract
This in vitro study used dye penetration to compare the sealing ability of white and
gray mineral trioxide aggregate mixed with distilled water and 0.12% chlorhexidine
gluconate when used as root-end filling materials. Ninety-six single-rooted human
teeth were cleaned, shaped, and obturated with gutta-percha and AH26 root canal sealer.
The apical 3 mm of each root was resected, and 3-mm deep root-end cavity preparations
were made. The teeth were randomly divided into 4 experimental groups, each containing
20 teeth, and 2 negative and positive control groups, each containing 8 teeth. Root-end
cavities in the experimental groups were filled with the experimental materials. After
decoronation of the teeth and application of nail polish, the teeth were exposed to
India ink for 72 hours and longitudinally sectioned, and the extent of dye penetration
was measured with a stereomicroscope. Statistical analysis showed that there were
no significant differences among the 4 experimental groups.
Key Words
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Article info
Publication history
Published online: September 18, 2007
Identification
Copyright
© 2007 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
