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CWSF 2006 - Saguenay, Québec

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Sarah McCuaig


Antibacterial Toothpaste - Do Not Swallow
Division:Life Sciences
Category:Intermediate
Region:Waterloo-Wellington
City:Waterloo, ON
School:Sir John A. Macdonald S.S.
Abstract:The effects of antibacterial toothpaste, containing 0.3% triclosan, on the probiotic lactobacillus (HA-111) bacteria, found in the human gastrointestinal tract, were investigated. Zones of inhibition appeared around filter paper disks inoculated with Colgate Total antibacterial toothpaste that were plated on blood agar plates, swabbed with lactobacillus isolate. Inhibitory zones continued to grow for 24 hours, 12 hours longer than the toothpaste’s claimed effectiveness.

Awards Value
Australian National Youth Science Forum Award
Sponsor:
$2 500.00
The University of Western Ontario Scholarship
Bronze Medallist - $1000 Entrance Scholarship
Sponsor: University of Western Ontario
$1 000.00
Bronze Medal - Health Sciences
Intermediate
Sponsor: Canadian Institutes of Health Research
$300.00
Total$3 800.00