What is the maximum level of fluoride allowed for home use?

The maximum level of fluoride allowed for home use is 5000 ppm (parts per million). This concentration is typically found in prescription fluoride toothpaste and some fluoride gels designed for at-home use. The high concentration effectively helps in the prevention and management of dental caries, especially for individuals who are at higher risk, such as those with a history of frequent caries or reduced salivary flow.

Higher concentrations, such as 10000 ppm, are generally reserved for professional use in clinical settings and are not deemed safe for regular home application. While lower concentrations, such as 1500 ppm and 2000 ppm, are suitable for standard toothpaste and some over-the-counter products, they may not provide sufficient topical fluoride for individuals needing higher strength due to specific dental health concerns. Thus, 5000 ppm is established as the appropriate maximum level for home use to balance effectiveness while minimizing potential risks associated with excessive fluoride exposure.