Study of adherence of normal oral bacteria on polymethyl methyacrylate containing silver-supported silicate inorganic antibacteria.
- Author:
Gang LI
1
;
Zhi-qing CHEN
;
Xing-hui WU
;
Xiao-rong XIAO
;
Yan-hong LI
;
Zhu ZHU
Author Information
- Publication Type:Journal Article
- MeSH: Anti-Bacterial Agents; Bacteria; Dental Plaque; Silicates; Silver
- From: West China Journal of Stomatology 2007;25(3):280-284
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo 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.
METHODSA 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%.
RESULTSThe 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.
CONCLUSIONSilver-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.