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West China Journal of Stomatology ; (6): 280-284, 2007.
Artigo em Chinês | WPRIM | ID: wpr-249721

RESUMO

<p><b>OBJECTIVE</b>To study the oral normal bacteria adherence on polymethyl methyacrylate (PMMA) containing silver-supported silicate inorganic antibacterial, and the growth inhibitory concentration of silver-supported silicate inorganic antibacterial to normal oral bacteria were also investigated.</p><p><b>METHODS</b>A certain volume of normal oral bacteria was inoculated on the RHI plate containing different dilution of silver-supported silicate inorganic antibacterial, then the growth of the bacteria was investigated by light microscope and biochemical methods; the oral bacteria plaque model in vitro was used to evaluate the adherence of 4 species normal oral bacteria mixture on the surface of PMMA which containing silver-supported silicate inorganic antibacterial in the proportion of 5% or 10%.</p><p><b>RESULTS</b>The growth of normal oral bacteria was inhibited effectively by silver-supported silicate inorganic antibacterial within the concentration of 8%, and the growth of Porphyromonas gingivalis and Conclida albicans were inhibited at concentration from 1.25% to 2.50%, but the PMMA containing silver-supported inorganic antibacterial could not prevent the adherence of bacteria within a period of 16 days.</p><p><b>CONCLUSION</b>Silver-supported silicate inorganic antibacterial has effectiveness on inhibiting the growth of normal oral bacteria, but could not prevent the adherence of oral normal bacteria mixture.</p>


Assuntos
Antibacterianos , Bactérias , Placa Dentária , Silicatos , Prata
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