title: [The inhibitory effect of glass ionomer cement for orthodontic bonding on bacteria].
abstract: OBJECTIVE
  To prove the inhibitory effect of glass ionomer cement for orthodontic bonding on bacteria.
  
  
  METHODS
  Twenty-two persons were chosen randomly. In vivo, with the split-mouth technique, brackets were bonded with glass ionomer cement or composite resin respectively. Plaque samples were taken from the area of the adhesive one month after the placement of brackets and incubated for microbiologic analysis.
  
  
  RESULTS
  There was no significant difference in the amount of total anaerobic bacteria with the two materials. There were also no obvious reduction of the numbers of S. mutans (the composite: 2.4 x 10(10) CFU/L, the glass ionomer cement: 2.8 x 10(10) CFU/L, P = 0.673) and its proportion (percentage of total CFU) with the use of glass ionomer cement compared with the composite.
  
  
  CONCLUSIONS
  There was no long term inhibitory effect on bacteria adjacent to glass ionomer cement for orthodontic bonding.
authors.affiliation: Department of PDI, Peking University School of Stomatology, Beijing 100081, China.
authors.forename: Shi-min
authors.initials: SM
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Hu
authors.forename: Min-kui
authors.initials: MK
authors.lastname: Fu
mesh_terms: D000293:Adolescent; D002648:Child; D003188:Composite Resins / Q000494:pharmacology; D003773:Dental Plaque / Q000382:microbiology*; D005260:Female; D005899:Glass Ionomer Cements / Q000494:pharmacology*; D006801:Humans; D007778:Lactobacillus / Q000187:drug effects*; D008297:Male; D016910:Orthodontic Brackets / Q000009:adverse effects; D013295:Streptococcus mutans / Q000187:drug effects*
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements