Fluoride Recommendations for Infants

North American Guidelines

The American Academy of Pediatric Dentistry and other major Canadian and American dental and pediatric societies endorse the use of fluoridated toothpaste twice daily for all children, including infants, with a grain of rice-sized portion for children younger than 3 years 1.
The American Academy of Pediatric Dentistry recommends that children have their teeth brushed by an adult, and that infants who breastfeed to sleep should have their gums and erupting teeth wiped to minimize the risk of caries 1.
Early childhood caries (ECC) prevention is optimal if initiated prenatally, with strategies including oral hygiene education and the use of fluoride toothpaste for pregnant women 1.

When prescribing fluoride, dentists and physicians should attempt to maximize benefit and minimize harm, considering both the benefit of dental caries prevention and the risk for enamel fluorosis in infants and children aged <6 years 2.
Fluoride supplements are intended to compensate for fluoride-deficient drinking water, and the dosage schedule requires knowledge of the fluoride content of the child's primary drinking water 2.
The evidence for using fluoride supplements to mitigate dental caries is mixed, with several studies reporting benefits while others do not 2.

Fluoride supplements should be prescribed only when the fluoride concentration of the drinking water supply has been tested and determined to be suboptimal 3.
There is a clear association between fluoride supplement use by children aged <6 years and enamel fluorosis 2.
In response to data on fluoride intake and enamel fluorosis prevalence, the supplement dosage schedule for children aged <6 years was markedly reduced in 1994 2.

The Centers for Disease Control and Prevention recommends fluoride toothpaste use for all children, including infants, beginning at first tooth eruption, as it reduces caries experience by 15-30% in studies 4, 5
Fluoride works through direct topical mechanisms that water cannot replicate, increasing salivary fluoride concentration 100- to 1,000-fold, and providing ongoing remineralization 4

The American Academy of Pediatric Dentistry recommends using a rice grain-sized smear of toothpaste for children under 3 years, applied twice daily by an adult caregiver, to minimize fluorosis risk 6, 7
The pea-sized amount (0.25g) of toothpaste is recommended for children aged 3-6 years, not infants 6, 7
Children who begin fluoride toothpaste before age 2 have higher fluorosis risk, but this risk is substantially reduced when using the correct rice grain-sized amount 6, 7

The Centers for Disease Control and Prevention recommends using standard fluoride toothpaste containing 1,000-1,100 ppm fluoride for caries prevention 4
Lower fluoride concentrations (250 ppm) are less effective, while 500-550 ppm may be nearly as effective but are not standard in the U.S. 8, 7

The FDA labeling requirements since 1996 direct parents of children under 2 years to seek advice from a dentist or physician before introducing fluoride toothpaste, but current professional consensus from the American Academy of Pediatric Dentistry clearly supports early fluoride toothpaste use with proper dosing 6, 5