How is systemic fluoride primarily ingested?

Systemic fluoride is primarily ingested through dietary sources, which include foods and beverages that contain fluoride naturally or have been fluoridated. This means that when a person consumes these items, the fluoride is absorbed into the bloodstream and can subsequently strengthen developing teeth and bones.

Fluoride can be found in various foods and drinks, such as tea, fish, and some fruit juices, and its role in dental health is significant, as it helps prevent dental caries by reinforcing the structure of teeth. It's important to recognize that while fluoride can be applied topically through dental treatments and dental products like toothpaste or mouth rinses, this method affects the teeth externally and does not classify as systemic fluoride ingestion. Similarly, skin contact does not lead to systemic absorption of fluoride, making dietary sources the key pathway for systemic fluoride intake.