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http://dx.doi.org/10.5395/JKACD.2006.31.1.036

Cytotoxicity and Genotoxicity of Newly Developed Calcium Phosphate-based Root Canal Sealers  

Kim, Hee-Jung (Department of Conservative Dentistry, College of Dentistry, Seoul National University)
Baek, Seung-Ho (Department of Conservative Dentistry, College of Dentistry, Seoul National University)
Bae, Kwang-Shik (Department of Conservative Dentistry, College of Dentistry, Seoul National University)
Publication Information
Restorative Dentistry and Endodontics / v.31, no.1, 2006 , pp. 36-49 More about this Journal
Abstract
The purpose of this study was to compare the cytotoxicity by MTT test and genotoxicity by Ames test of new calcium phosphate-based root canal sealers (CAPSEAL I, CAPSEAL II) with commercially available resin-based sealers (AH 26, AH Plus) , zinc oxide eugenol-based sealers (Tubliseal EWT, Pulp Canal Sealer EWT), calcium hydroxide-based sealer (Sealapex), and tricalcium phosphate based sealers (Sankin Apatite Root Canal Sealer I, II, III). According to this study, the results were as follows : 1. The extracts of freshly mixed group showed higher toxicity than those of 24 h set group in MTT assay (p<0.001). 2. CAPSEAL I and CAPSEAL II were less cytotoxic than AH 26, AH Plus, Tubliseal EWT, Pulp Canal Sealer EWT Sealapex and SARCS II in freshly mixed group (p<0.01). 3. AH 26 in freshly mixed group showed mutagenicity to TA98 and TA100 with and without S9 mix and AH Plus extracts also were mutagenic to TA100 with and without S9 mix. 4. Tubliseal EWT, Pulp Canal Sealer EWT and Sealapex in freshly mixed group were mutagenic to TA100 with S9 mix. 5. Among those of 24 h set groups the extracts of SARCS II were mutagenic to TA98 with and without S9 mix and AH 26 showed mutagenic effects to TA98 with S9 mix. 6. No mutagenic effect of CAPSEAL I and CAPSEAL II was detected. 7. There is no statistically significant difference between CAPSEAL I and CAPSEAL II at MTT assay and Ames test in both freshly mixed group and 24 h set group.
Keywords
Root canal sealer; Cytotoxicity; Genotoxicity; Calcium phosphate;
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