Abstract
Introduction
The aim of the present study was to evaluate the physicochemical properties of a bioceramic
root canal sealer, Endosequence BC Sealer. Radiopacity, pH, release of calcium ions
(Ca2+), and flow were analyzed, and the results were compared with AH Plus cement.
Methods
Radiopacity and flow were evaluated according to ISO 6876/2001 standards. For the
radiopacity analysis, metallic rings with 10-mm diameter and 1-mm thickness were filled
with cements. The radiopacity value was determined according to radiographic density
(mm Al). The flow test was performed with 0.05 mL of cement placed on a glass plate.
A 120-g weight was carefully placed over the cement. The largest and smallest diameters
of the disks formed were measured by using a digital caliper. The release of Ca2+ and pH were measured at periods of 3, 24, 72, 168, and 240 hours with spectrophotometer
and pH meter, respectively. Data were analyzed by analysis of variance and Tukey test
(P < .05).
Results
The bioceramic endodontic cement showed radiopacity (3.84 mm Al) significantly lower
than that of AH Plus (6.90 mm Al). The pH analysis showed that Endosequence BC Sealer
showed pH and release of Ca2+ greater than those of AH Plus (P < .05) during the experimental periods. The flow test revealed that BC Sealer and
AH Plus presented flow of 26.96 mm and 21.17 mm, respectively (P < .05).
Conclusions
Endosequence BC Sealer showed radiopacity and flow according to ISO 6876/2001 recommendations.
The other physicochemical properties analyzed demonstrated favorable values for a
root canal sealer.
Key Words
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Article info
Publication history
Published online: April 06, 2012
Identification
Copyright
© 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
