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Evaluation on Biocompatibility of AUSI and Fe Stainless Steels in the Ames Test

Author: LiangBaoGang
Tutor: ZhanDeSong
School: China Medical University
Course: Clinical Stomatology
Keywords: AUSI stainless steel Fe stainless steel biocompatibility Ames test
CLC: R783.1
Type: Master's thesis
Year: 2006
Downloads: 75
Quote: 0
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Abstract


ObjectiveTo study the biocompatibility of AUSI stainless steel and ferrite stainless steel which wrap magnetic retainer, evaluate the carcinogenicity and mutagenici-ty of the two materials at the point of toxicity. Provide theoretical and practical basis for exploiting new product.MethodsImmerse the two special stainless steel into 0. 154M NaCl medium according to 1. 3 ml NaCl liquid per square centimeter after casting each mental material into the body of 2cm×2cm×0.1cm. Bring them up at the temperature of 37℃ for five days. The two test strains: SalmonellatyphimuriumTA98and TA100.In the Ames test , the negative and the positive compare groups were 0. 154M NaCl solution and Sodium azide、DRB solution respectively. The two test - groups were used with original solution and the solutions which were diluted for two 、four times and eighth times. The experiment was performed by the plate incorporation procedure with and without S9 mixture. The places were incubated at 37 for 48h and the number of revertant colonies was counted. All experiments were performed in triplicate and each assay was performed in duplicate. All results were analyzed with SPSS soft ware package.Results1. Observing the original liquids with naked eye, the two original liquids

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CLC: > Medicine, health > Oral Sciences > Oral orthotics > Dental Materials Science
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