title: [Study of adherence of normal oral bacteria on polymethyl methyacrylate containing silver-supported silicate inorganic antibacteria].
abstract: OBJECTIVE
  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.
  
  
  METHODS
  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%.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Dept. of Stomatology, Kunming Medical College, Kunming 610093, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Zhi-Qing
authors.initials: ZQ
authors.lastname: Chen
authors.forename: Xing-Hui
authors.initials: XH
authors.lastname: Wu
authors.forename: Xiao-Rong
authors.initials: XR
authors.lastname: Xiao
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Li
authors.forename: Zhu
authors.initials: Z
authors.lastname: Zhu
mesh_terms: D000900:Anti-Bacterial Agents; D001419:Bacteria; D003773:Dental Plaque; D017640:Silicates; D012834:Silver
chemical_list: D000900:Anti-Bacterial Agents; D017640:Silicates; D012834:Silver