A 9-month-old infant has developed two teeth since the 6-month checkup. The local water supply contains fluoride. What will the primary care pediatric nurse practitioner do to promote healthy dentition at this visit?

Choice A reason: Fluoride varnish is typically applied starting at the age of 12 months or when the child is at high risk for caries. It is not the first step in routine dental hygiene for a healthy infant with fluoridated water. Choice B reason: Teaching parents to brush with a smear of fluoride toothpaste is the recommended strategy once teeth erupt, especially when the water supply already contains fluoride. This promotes early oral hygiene and prevents caries. Choice C reason: While dental visits are encouraged by age 1, the priority at this visit is establishing daily oral hygiene practices at home. Choice D reason: Fluoride supplementation is not necessary if the local water supply is fluoridated. Over-supplementation may increase the risk of fluorosis.