Adding fluoride ions to toothpaste and drinking water to prevent tooth decay is effective because fluoride ________
A)kills decay-producing bacteria.
B)produces stronger teeth.
C)reduces the solubility of tooth enamel at low pH.
D)reduces the solubility of tooth enamel at high pH.
E)prevents halitosis.

Question

Quizplus · Accepted Answer

Fluoride ions react with tooth enamel to form a stronger compound that is more resistant to decay. Additionally, fluoride reduces the solubility of tooth enamel at low pH, meaning it is less likely to dissolve in the presence of acid produced by bacteria in the mouth. However, fluoride does not kill bacteria directly or affect the solubility of enamel at high pH levels. Preventing halitosis is not a primary function of fluoride.

Adding Fluoride Ions to Toothpaste and Drinking Water to Prevent