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Direct linkMoyer, Richard; Everett, Susan – Science Scope, 2010
Manufacturers often claim that their particular toothbrush design is better than the competitors, but is it? As a result, engineers must consider the economic issues involved with selling the products they create, as well as their functionality: to produce the best possible toothbrush regardless of cost, or the toothbrush that will sell the most,…
Descriptors: Dental Health, Equipment, Design, Engineering
Paulino, Tony P.; Andrade, Ricardo O.; Bruschi-Thedei, Giuliana C. M.; Thedei, Geraldo, Jr.; Ciancaglini, Pietro – Biochemistry and Molecular Biology Education, 2004
The main objective of this class experiment is to show the influence of carbon source and of different fluoride concentrations on the biofilm formation by the bacterium "Streptococcus mutans." The observation of different biofilm morphology as a function of carbon source and fluoride concentration allows an interesting discussion regarding the…
Descriptors: Prevention, Diseases, Biochemistry, Microbiology
