National Board Dental Hygiene Examination (NBDHE) Dental Hygienist Practice Test

For which age group is 1.0mg fluoride dosage recommended?

1. Under 6 years

2. 6-16 years

3. 17-21 years

4. Adults

The correct answer is: 6-16 years

The recommended fluoride dosage of 1.0 mg is specifically aimed at the age group of 6 to 16 years. During this developmental stage, children and adolescents are forming permanent teeth, and adequate fluoride exposure is crucial for the remineralization of tooth enamel and prevention of dental caries. This age group is particularly sensitive to the benefits of fluoride, as it aids in both the formation of stronger teeth and the prevention of cavities. Fluoride helps by making the tooth enamel more resistant to acid attacks from bacteria in plaque, and it also contributes to the overall dental health by reducing the incidence of decay. The dosage is carefully calibrated to ensure maximum benefit while minimizing the risk of dental fluorosis, which can occur if fluoride is ingested in excessive amounts during the years when teeth are developing. For those under 6 years, lower dosages are typically recommended due to the risk of fluorosis and the fact that their primary teeth are already well into development. Adults and those in the age group of 17 to 21 typically do not require as high of a dosage since their permanent teeth are already formed, and their dental care focuses more on maintenance and the prevention of disease rather than developmental considerations.