Environmental Sciences, asked by sk4044135, 1 day ago

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Answered by XxllMrRDXllxX001
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Toothpaste is a paste or gel dentifrice used with a toothbrush to clean and maintain the aesthetics and health of teeth. ... The decline of tooth decay during the 20th century has been attributed to the introduction and regular use of fluoride-containing toothpastes worldwide

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