Many children begin brushing their teeth before the age of 2.5 Simard et al.proposed that most children begin to use fluoride dentifrice by the age of 18 to 24 months.6 Wyne et al. also found that brushing commenced, on average, between 6 and 24 months for 84.5% of his study population. This is right around the time when teeth are most vulnerable to fluorosis. The American Academy of Pediatric Dentistry (AAPD), the American Dental Association(ADA), as well as the CDC, recommend using a “pea size”amount of fluoridated toothpaste to reduce the risk of fluoride ingestion and decrease the chances of fluorosis in these young children.