Adding Fluoride Ions to Toothpaste and Drinking Water Converts the Mineral

question 73

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)solubility 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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