Which of the following is true of fluoride?
A) A deficiency causes the condition fluorosis.
B) Toxicity is unknown.
C) A deficiency can lead to pica.
D) It is added to about 25 percent of community water systems in the United States.
E) It makes teeth stronger and more resistant to decay.

Question

Which of the following is true of fluoride? 
A) A deficiency causes the condition fluorosis. 
B) Toxicity is unknown. 
C) A deficiency can lead to pica. 
D) It is added to about 25 percent of community water systems in the United States. 
E) It makes teeth stronger and more resistant to decay.

Quizplus · Accepted Answer

Fluoride is known to make teeth stronger and more resistant to decay. It is commonly added to toothpaste, mouthwash, and is also added to about 25 percent of community water systems in the United States. A deficiency of fluoride can lead to tooth decay, but it does not cause fluorosis, which is actually caused by an excess of fluoride. Fluoride can be toxic in high levels, and a deficiency does not lead to pica.

Which of the Following Is True of Fluoride