The recommended level of fluorides in drinking water in this Country is accepted as
**Core Concept**
The recommended level of fluoride in drinking water is a public health measure aimed at preventing dental caries while minimizing the risk of dental fluorosis. The optimal concentration of fluoride in drinking water is a balance between the prevention of tooth decay and the minimization of adverse effects.
**Why the Correct Answer is Right**
The optimal level of fluoride in drinking water is generally accepted to be between 0.7 and 1.2 milligrams per liter (mg/L). This range is based on the idea that fluoride concentrations below 0.7 mg/L are not sufficient to prevent dental caries, while concentrations above 1.2 mg/L increase the risk of dental fluorosis. The recommended level is also influenced by the age of the population and the availability of alternative sources of fluoride, such as toothpaste and community water fluoridation programs.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is below the recommended level of fluoride in drinking water, which is not sufficient to prevent dental caries.
* **Option B:** This option is incorrect because it is above the recommended level of fluoride in drinking water, which increases the risk of dental fluorosis.
* **Option C:** This option is incorrect because it is not a valid concentration of fluoride in drinking water, and it does not align with the recommended levels established by public health organizations.
**Clinical Pearl / High-Yield Fact**
It is essential for clinicians to be aware of the recommended levels of fluoride in drinking water to provide accurate information to patients and to monitor the effectiveness of community water fluoridation programs.
**Correct Answer: C. 1.2 mg/L**