Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (51): 9557-9560.doi: 10.3969/j.issn.1673-8225.2011.51.014

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Antibacterial properties of LZB-GC nano-silver-filled antibacterial agents used in alginate impression materials

Liu Wen-juan1, Wang Yi2, Zhao Hong-mei3, Liu Bin1, Han Jian1, Zhou Wei1, Wang Meng1   

  1. 1College of Stomatology, Institute of Pathogen Biology, Lanzhou University, Lanzhou  730000, Gansu Province, China
    2Yantanshan Hospital, Yantan  264001, Shandong Province, China
    3Dental Hospital of Lanzhou City, Lanzhou  730000, Gansu Province, China
  • Received:2011-05-13 Revised:2011-06-21 Online:2011-12-17 Published:2011-12-17
  • Contact: Liu Bin, Doctor, Professor, Master’s supervisor, College of Stomatology, Institute of Pathogen Biology, Lanzhou University, Lanzhou 730000, Gansu Province, China liubkq@lzu.edu.cn Correspondence to: Han Jian, Studying for doctorate, Associate professor, Master’s supervisor, College of Stomatology, Institute of Pathogen Biology, Lanzhou University, Lanzhou 730000, Gansu Province, China hanj@lzu.edu.cn
  • About author:Liu Wen-juan★, Master, Lecturer, College of Stomatology, Institute of Pathogen Biology, Lanzhou University, Lanzhou 730000, Gansu Province, China klys2003@ yahoo.com.cn
  • Supported by:

    the Fundamental Research Funds for the Central Universities of Lanzhou University, No. lzujbky-2010-195*; the Plan of Lanzhou Science and Technology Bureau, No. 2008-1-86*; the Science and Technology Program of Gansu Province, No. 1107RJYA002*

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Abstract:

BACKGROUND: The disinfection method of alginates impression materials has been controversial.   
OBJECTIVE: To analyze the appropriate ratio of the LZB-GC nano-silver-filled antibacterial agent to the alginate impression material.
METHODS: The LZB-GC antibacterial agents were added into the alginate impression materials according to different contents, including 0.125, 0.25%, 0.5%, 1%, 1.5%, 2% and 2.5%. The alginate impression materials without the LZB-GC antibacterial agents served as a control. Their antibacterial activities were tested by film adhesion method, including Staphylococcus aureus and Escherichia coli.
RESULTS AND CONCLUSION: The antibacterial efficiency was increased as the adding ratios of antibacterial agent against two tested bacteria strains increased (P < 0.05). The antibacterial efficiency was beyond 99% when the adding ratio of antibacterial agent was 0.5% or beyond 0.5%. It was indicated that the best adding ratio of the LZB-GC antibacterial agent in the alginate impression material was 0.5%.

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