Evaluation of cytotoxicity of accessories used for traction of impacted teeth
Braz. j. oral sci
;
9(2): 115-119, Apr.-June 2010. ilus, tab
Artigo
em Inglês
| LILACS, BBO
| ID: lil-578074
ABSTRACT
Aim:
To test the hypothesis that gold-coated orthodontic accessories used for canine traction are less cytotoxic than those made of stainless steel.Methods:
Six different orthodontic accessories were evaluated, three of them made from stainless steel (1 bracket, 2 button, 3 mesh pad) and three made from a gold-coated alloy (4 small mesh pad, 5 button, 6 big mesh pad). Three control groups were also analyzed Positive control (C+), consisting of Tween 80 cell detergent;Negative control (C-), consisting of PBS; and Cell control (CC), consisting of cells not exposed to any material. Dye-uptake technique, in which neutral red dye is incorporated into viable cells, was used to assess the cytotoxicity of the accessories. Viable cell counting was performed using a spectrophotometer. Data were analyzed statistically by A NOVA and Tukeys test.Results:
Statistically significant differences (P< 0.05) were found between Groups 1-3 and Groups 4-6. However, no differences were found between Groups 1-3 and Groups C- and CC, and neither between Groups 4-6 and Group C+.Conclusions:
The tested hypothesis was not confirmed since gold-coated orthodontic accessories were found to be more cytotoxic than those made of stainless steel.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Aparelhos Ortodônticos
/
Aço Inoxidável
/
Dente Impactado
/
Meios de Cultura
/
Fibroblastos
/
Ligas de Ouro
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Federal University of Rio de Janeiro/BR
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