title: Effect of Bifidobacterium bifidum containing yoghurt on dental plaque bacteria in children.
abstract: OBJECTIVE
  The aim of the present study is to determine the possible effect of Bifidobacterium bifidum DN-173 010 on dental plaque of children.
  
  
  METHODS
  52 children (25 F and 27 M), between the ages of 8-10, participated in the present study. The study had a double blind, randomized crossover design and the experimental period consisted of four consecutive time periods. During periods 2 and 4 (2 weeks each), children consumed 110 g probiotic fruit yogurt (Bifidobacterium DN-173 010 (1 x 10(10) cfu/g)), or a placebo fruit yogurt per day. Available supragingival plaque (24 h later) was collected from teeth 16, 11, 36 and 31 at baseline and at the end of periods 2 and 4. The counts of dental plaque mutans streptococci (MS) were evaluated using Dentocult SM (Strep Mutans).
  
  
  RESULTS
  Changes of pre- and post-treatment levels of dental plaque MS were recorded for four consecutive sampling sites. There were no statistically differences between transition scores of test and placebo groups regarding different dental plaque sampling sites (p > 0.05) (unpaired t-test).
  
  
  CONCLUSIONS
  Within the limitations of the present study, Bifidobacterium bifidum DN-173 010 has no effect on dental plaque MS levels in children.
authors.affiliation: Pentadent Agiz ve Dis Sagligi Merkezi, Istanbul, Turkey. caglares@yahoo.com
authors.forename: Esber
authors.initials: E
authors.lastname: Caglar
mesh_terms: D058491:Bacterial Load; D001644:Bifidobacterium / Q000502:physiology*; D002648:Child; D018592:Cross-Over Studies; D003773:Dental Plaque / Q000382:microbiology*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007778:Lactobacillus / Q000254:growth & development; D008297:Male; D056265:Microbial Interactions; D010919:Placebos; D019936:Probiotics / Q000627:therapeutic use*; D012463:Saliva / Q000382:microbiology; D013295:Streptococcus mutans / Q000254:growth & development*; D015014:Yogurt / Q000382:microbiology*
chemical_list: D010919:Placebos