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KMID : 0361919940240020419
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Korean Journal of Orthodontics
1994 Volume.24 No. 2 p.419 ~ p.432
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An Experimental Study on the Cytotoxicity of Various Orthodontic Bands
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Abstract
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The purpose of this study was to investigate the cytotoxicity of orthodontic bands in vitro and in vivo. 4 types of orthodontic bands were applied to cultured fibroblast and the supernatants were injected into dorsal subcutaneous tissue of mice.
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vitro, the cytotoxixity was evaluated by an MTT assay after 2 and 6days. In vivo, the histopathologic observation was performed 2 days after injection.
@ES The results were :
@EN 1. The cell viability was significantly decreased in the group added phosphoric acid in comparison too control group, but there was not any significance among the experimental group after 2 days.
2. Cell viability decreased in the high Ni containing group after 6 days.
3. The histopathological finding was that the Cr-containing group showed severe infiltration of inflammatory cells and muscular destruction.
KOREA J. ORTHOD 1994 ; 24(2) : 419-432.
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