What best describes the trend of fluorosis in the United States?

The trend of fluorosis in the United States indicates an increase in the prevalence of slight fluorosis. This is particularly relevant in the context of dental public health and the ongoing use of fluoride in various forms, including toothpaste and community water supplies.

Slight fluorosis is a cosmetic condition, typically characterized by white spots or streaks on teeth, which can occur when excessive fluoride is ingested during the years when the teeth are developing. Public health initiatives have promoted the benefits of fluoride for caries prevention, but there has also been increased awareness about the potential for fluorosis, especially in young children who are more susceptible to its effects due to their developing teeth.

Surveys and studies over the years have shown that while moderate to severe fluorosis remains uncommon, slight fluorosis cases have become more identifiable and reported. This increase is often attributed to the overall increase in fluoride exposure from various sources. Thus, the prevalence of fluorosis has not been eradicated and is indeed on the rise, particularly the slight form of the condition, reflecting a nuanced relationship between fluoride use and dental health outcomes.