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Chemical composition, radiopacity, and biocompatibility of Portland cement with bismuth oxide

Cited 37 time in Web of Science Cited 45 time in Scopus
Issue Date
2009-03
Publisher
Elsevier
Citation
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;107:e96-e102
Abstract
Objective. This study compared the chemical constitution, radiopacity, and biocompatibility of Portland cement
containing bismuth oxide (experimental cement) with those of Portland cement and mineral trioxide aggregate (MTA).
Study design. The chemical constitution of materials was determined by scanning electron miscroscopy and energydispersive
X-ray analysis. The radiopacity of the materials was determined using the ISO/6876 method. The
biocompatibility of the materials was tested by MTT assay and tissue reaction.
Results. The constitution of all materials was similar. However, the Portland cement and experimental cement were
more irregular and had a larger particle size than MTA. The radiopacity of the experimental cement was similar to
MTA. The MTT assay revealed MTA to have slightly higher cell viability than the other materials. However, there were
no statistically significant differences between the materials, with the exception of MTA at 24 h. There was no
significant difference in the tissue reaction between the experimental groups.
Conclusions. These results suggest that the experimental cement may be used as a substitute for MTA.
ISSN
1079-2104
Language
English
URI
https://hdl.handle.net/10371/62764
DOI
https://doi.org/10.1016/j.tripleo.2008.11.015
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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