Toothpaste

Toothpaste is a paste or gel dentifrice that is used with a toothbrush to clean and maintain the aesthetics of teeth. Toothpaste is used to promote oral hygiene: it is an abrasive that aids in removing dental plaque and food from the teeth, assists in suppressing halitosis, and delivers active ingredients to help prevent tooth decay and gum disease (gingivitis). Due to variations in composition and fluoride content, not all toothpastes are equally effective in maintaining oral health.

The decline of tooth decay during the 20th century has been attributed to the introduction and regular use of fluoride-containing toothpastes worldwide.
Large amounts of swallowed toothpaste can be poisonous.
Common colors for toothpaste include white and blue.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0