title: [Antibacterial effect of nHA-PA66 in vitro].
abstract: OBJECTIVE
  To evaluate the antibacterial activity of nHA-PA66 on the predominant bacteria of infected root canal in vitro.
  
  
  METHODS
  Agar diffusion method was the testing method. Porphyromonas gingivalis (P. gingivalis), Fusobacteria nucleatum (F. nucleatum) and Prevotalla intermedius (P. intermedius) were the tested bacteria. The powder and polymerized film of nHA-PA66 were the test mateials while the CCQ and filter paper as the control.
  
  
  RESULTS
  nHA-PA66's powder showed good antebacterial effect on the P. gingivalis and P. intermedius, its film was weaker. Both of them had no effect on F. nucleatum.
  
  
  CONCLUSIONS
  nHA-PA66's antibacterial effect was not ideal, for better clinical results, some additives can be included.
authors.affiliation: Dept of Conservative Dentistry, West China College of Stomatology, Sichuan University, Chengdu.
authors.forename: Ling
authors.initials: L
authors.lastname: Ye
authors.forename: Qin
authors.initials: Q
authors.lastname: Su
authors.forename: Xue-dong
authors.initials: XD
authors.lastname: Zhou
authors.forename: Xiao-rong
authors.initials: XR
authors.lastname: Xiao
mesh_terms: D000900:Anti-Bacterial Agents; D016967:Fusobacterium nucleatum; D006801:Humans; D066298:In Vitro Techniques; D016966:Porphyromonas gingivalis; D012390:Root Canal Therapy
chemical_list: D000900:Anti-Bacterial Agents