Adding Fluoride Ions to Toothpaste and Drinking Water Converts the Mineral

question 29

Multiple Choice

Adding fluoride ions to toothpaste and drinking water converts the mineral in tooth enamel, hydroxyapatite, to fluoroapatite.This conversion is beneficial in preventing tooth decay because fluoroapatite

• A)has a solubility that is less pH dependent.
• B)makes strong hydrogen bonds.
• C)prevents halitosis.
• D)repels decay-producing bacteria.
• E)kills decay-producing bacteria.

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