Abstract
This investigation compared microleakage of teeth obturated with gutta-percha and
teeth obturated with Resilon by using a fluid filtration model. Forty-six human, single-rooted,
mandibular premolars were studied. Teeth were randomly assigned to 2 experimental
groups of 21 teeth each, designated as group G (gutta-percha) and group R (Resilon).
Two control groups, both containing 2 teeth, served as positive and negative controls.
Group G, gutta-percha and AH 26 sealer, and group R, Resilon and Epiphany sealer,
were obturated by using warm vertical condensation. The specimens were tested for
microleakage with an in vitro fluid filtration apparatus at 10 psi at 4 intervals: 1, 7, 30, and 90 days. A two-way
repeated measures analysis of variance model with fixed effects for group, time, and
group by time interaction was used to analyze microleakage data. This study demonstrated
that canals obturated with Resilon and Epiphany sealer leaked statistically less than
canals obturated with gutta-percha and AH 26 sealer at day 1 (P < .0014), day 7 (P < .0002), day 30 (P < .0015), and day 90 (P < .0170). The mean fluid microleakage for both group G and group R increased from
day 1 to day 90. The results showed that Resilon is a suitable replacement for gutta-percha
as a root canal filling material on the basis of its increased resistance to fluid
microleakage.
Key Words
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Article info
Publication history
Published online: October 16, 2007
Identification
Copyright
© 2007 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
