Which compound is primarily used in water fluoridation?

The compound primarily used in water fluoridation is actually not H2SiF, but rather sodium fluoride or fluorosilicic acid. These compounds effectively provide the necessary fluoride ions, which help in reducing dental cavities and promoting oral health.

Choosing fluoride compounds like sodium fluoride allows for effective incorporation of fluoride into the water supply, ensuring that it is delivered in a safe and controlled manner to the population. Fluoride helps in the remineralization of tooth enamel, making it more resistant to decay.

H2SiF is not typically used for this purpose. The other compounds listed—such as SnF (stannous fluoride), which is often utilized in toothpaste and mouth rinses; 1.23% APF (acidulated phosphate fluoride), primarily used for professional treatments; and CaSiF (calcium silicofluoride)—are used in different contexts but not predominantly for public water fluoridation.

Understanding the purpose and application of these different fluoride compounds is essential for recognizing the appropriate ones for use in water fluoridation.