Document Detail


Cell-cycle deregulation induced by three different root canal sealers in vitro.
MedLine Citation:
PMID:  18718791     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to investigate the effects of 3 root canal sealers on the cell cycle of mouse fibroblasts (3T3 cell line). Freshly mixed root canal sealers (AH Plus, Endofill, and Sealer 26) were eluted for 24 h using cell culture medium. Antiproliferation activity of different eluate dilutions was determined by 3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide assay. Cell cycle was subsequently evaluated by flow cytometry. Differences were tested by analysis of variance with Tukey test (P < .05). Results showed that the root canal sealers inhibited cell growth in a dose-dependent manner. Antiproliferation activity of the root canal sealers was associated with cell-cycle deregulation. This event involved cell-cycle arrest in the S/G2/M phases and an increase of the sub-G1 population, which are consistent with both cytostatic and cytotoxic effects. This information may contribute to a better understanding of the toxicity mechanism displayed by root canal sealers currently used in clinical practice.
Authors:
Caroline R A Valois; Ricardo B Azevedo
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-20
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  106     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-20     Completed Date:  2009-02-02     Revised Date:  2012-03-05    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  763-7     Citation Subset:  D; IM    
Affiliation:
Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília, Brazil. cravalois@uol.com.br
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MeSH Terms
Descriptor/Qualifier:
3T3 Cells
Animals
Bismuth / toxicity
Calcium Hydroxide / toxicity
Cell Cycle / drug effects*
Cell Proliferation / drug effects
Dose-Response Relationship, Drug
Epoxy Resins / toxicity
Fibroblasts / drug effects*
Flow Cytometry
Materials Testing
Mice
Root Canal Filling Materials / toxicity*
Chemical
Reg. No./Substance:
0/Epoxy Resins; 0/Root Canal Filling Materials; 0/Sealer 26; 0/expoy resin-based root canal sealer; 115055-53-3/Endo-Fill; 1305-62-0/Calcium Hydroxide; 7440-69-9/Bismuth

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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