title: Antibacterial surface properties of various fluoride-releasing restorative materials in vitro.
abstract: OBJECTIVE
  The aim of this study was to investigate the antibacterial surface properties of high-viscosity glass ionomers (Fuji IX GP, Ketac Molar), a resin-modified nano-ionomer (Ketac N100), resin-modified glass ionomers (Fuji II LC, Vitremer), a compomer (Compoglass F) and a resin-based composite (Filtek Z250).
  
  
  METHODS
  ISO-standardized specimens 6 mm in diameter were prepared for each restorative material. The antibacterial properties of the materials were tested in an agar diffusion assay using Streptococcus mutans (ATCC 25175) for 24 and 48 hours. An inhibition zone greater than 6 mm was defined as diffuse inhibition, whereas zones ≤6 mm were described as contact inhibition.
  
  
  RESULTS
  All tested materials exhibited a contact antibacterial effect against S. mutans. Vitremer showed the most remarkable antibacterial diffuse inhibition.
  
  
  CONCLUSIONS
  These materials might cause antibacterial effects against S. mutans when placed on cavity surfaces in both enamel and dentine, thereby preventing secondary caries formation.
authors.affiliation: Department of Paediatric Dentistry, Faculty of Dentistry, Yeditepe University, Istanbul - Turkey.
authors.forename: Elif
authors.initials: E
authors.lastname: Sungurtekin-Ekci
authors.affiliation: Department of Paediatric Dentistry, Faculty of Dentistry, Yeditepe University, Istanbul - Turkey.
authors.forename: Didem
authors.initials: D
authors.lastname: Ozdemir-Ozenen
authors.affiliation: Department of Microbiology, Faculty of Medicine, Yeditepe University, Istanbul - Turkey.
authors.forename: Selvi
authors.initials: S
authors.lastname: Duman
authors.affiliation: Department of Microbiology, Faculty of Medicine, Yeditepe University, Istanbul - Turkey.
authors.forename: Ibrahim C
authors.initials: IC
authors.lastname: Acuner
authors.affiliation: Department of Paediatric Dentistry, Faculty of Dentistry, Yeditepe University, Istanbul - Turkey.
authors.forename: Nuket
authors.initials: N
authors.lastname: Sandalli
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology*; D020770:Compomers / Q000737:chemistry / Q000494:pharmacology; D003764:Dental Materials / Q000737:chemistry* / Q000494:pharmacology*; D005459:Fluorides / Q000737:chemistry* / Q000494:pharmacology*; D005899:Glass Ionomer Cements / Q000737:chemistry / Q000494:pharmacology; D008422:Materials Testing; D008826:Microbial Sensitivity Tests; D013295:Streptococcus mutans / Q000187:drug effects; D013499:Surface Properties
chemical_list: D000900:Anti-Bacterial Agents; D020770:Compomers; D003764:Dental Materials; D005899:Glass Ionomer Cements; D005459:Fluorides