The mean annual per capita cost is lower in community water fluoridation systems for larger populations than it is for smaller populations. The optimal level for water fluoridation is 7.0 ml F per liter of water regardless of climatic conditions.
A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second statement is false.
D) The first statement is false; the second statement is true.

Question

Quizplus · Accepted Answer

Community water fluoridation is cost saving, even for small communities. An economic evaluation published in 2001 estimated an annual per person cost savings ranging from $16 in very small communities of 5000 or less to nearly $19 for larger communities of 20,000 or more. In 1962, the DHHS recommended levels for water fluoridation ranging from 0.7 to 1.2 ppm F, depending on the average daily temperature for the area. The range was based on the hypothesis that water consumption increased with increasing climatic temperature. This recommendation remained in place until 2015, when the Public Health Service issued the final recommendation that the optimal fluoride level be changed to 0.7 ml F per liter of water regardless of climatic conditions.

The Mean Annual Per Capita Cost Is Lower in Community