A closer look at toothpastes
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How does toothpaste work? What is it made of? Are all brands the same? What criteria can be used to evaluate their effectiveness and efficiency? Students will enjoy this insightful look at this commonly used product. Using the toothpaste samples provided, they’ll learn how to evaluate toothpaste and assess the quality of individual brands by determining such attributes as abrasiveness, pH, fluoride content and foaming ability.