The nurse is preparing a presentation for a health fair illustrating the major milestones of infants as they grow and develop. Which fact should the nurse point out when illustrating an infant’s teeth?

Choice A reason: Fluoride is safe from 6 months in appropriate amounts, not delayed until 4-5 years. The first tooth’s eruption at 6 months is a key milestone, making this incorrect, as it misstates fluoride use in the context of infant dental development for the health fair. Choice B reason: Swollen or inflamed gums are normal during teething, not a serious concern. The first tooth erupting at 6 months is a standard milestone, making this incorrect, as it misrepresents a common teething symptom as problematic in the nurse’s health fair presentation. Choice C reason: The first tooth typically erupts by 6 months, marking the start of dental growth, a significant infant milestone. This aligns with pediatric dental guidelines, making it the correct fact for the nurse to highlight in the health fair presentation on infant developmental milestones. Choice D reason: Lower central incisors, not upper, are usually the first to erupt in infants. The 6-month eruption timeline is accurate, making this incorrect, as it misidentifies the typical first teeth in the nurse’s presentation on infant dental development milestones at the health fair.