Cytotoxicity evaluation of two root canal sealers and a commercial calcium hydroxide paste on THP1 cell line by Trypan Blue assay
J. appl. oral sci
;
17(5): 457-461, Sept.-Oct. 2009. ilus, graf
Artigo
em Inglês
| LILACS
| ID: lil-531397
ABSTRACT
OBJECTIVE: The aim of this investigation was to evaluate the cytotoxicity of two brands of root canal sealers, epoxy-resin based and zinc oxide-eugenol based, and one commercial calcium hydroxide paste on a monocyte cell line THP-1. MATERIAL AND METHODS: Undiluted (crude extract) and diluted extracts to 10 percent, 1 percent, 0.1 percent, 0.01 percent, 0.001 percent and 0.0001 percent of the sealers were tested for cytotoxicity to THP-1 cells using the trypan blue assay. Extracts were obtained according to ISO standard. Data were analyzed statistically by the Kruskal-Wallis and Mann-Whitney tests at 5 percent significance level. RESULTS: Crude extract of AH Plus and Fill Canal killed approximately 90 percent of THP-1 cells versus 36 percent of THP-1 cells killed by L&C crude extract (p<0.05). Ten-fold dilutions of L&C, Fill Canal and AH Plus killed 24, 35 and 61 percent of THP-1 cells (p<0.05), respectively. Dilutions lesser than 1 percent caused minimal cell death as compared to the control groups (p>0.05), except for L&C 1 percent extract. CONCLUSIONS: The results revealed that the L&C paste crude extract was less cytotoxic to THP-1 cells than AH Plus or Fill Canal crude extracts.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Materiais Restauradores do Canal Radicular
/
Hidróxido de Cálcio
Limite:
Humanos
Idioma:
Inglês
Revista:
J. appl. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2009
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Brasil
/
Canadá
Instituição/País de afiliação:
Fluminense Federal University/BR
/
Rio de Janeiro Federal University/BR
/
State University of Rio de Janeiro/BR
/
University of British Columbia/CA
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