Since the 1940s, toothpastes have replaced baking soda as the dentifrices of choice because toothpastes were more effective and pleasing in taste. Mid 20th century saw the addition of fluoride to the toothpaste to fight against the tooth decay. Until about 1985, all toothpastes were basically the same and consisted of 4 ingredients: fluoride, an abrasive, a flavoring and a foam. Toothpastes now are formulated to eliminate decay, reduce tartar, freshen breath, whiten teeth, circumvent allergies, eliminate tooth sensitivity and minimize ulcers. They come in pastes, gels, drops and powders and in every flavor and color possible.
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