Written by medicalnewstoday.com Wednesday, 08 September 2010 10:04
Dental sealants containing a variety of bisphenol A (BPA) derivatives are effective in preventing the most common dental cavities in children and adolescents.
The special article, “Bisphenol A and Related Compounds in Dental Materials: A Critical Review,” in the October 2010 print issue of Pediatrics evaluates the BPA content of dental materials and suggests ways to manage BPA exposures. Dental materials present a much smaller and infrequent exposure to BPA than more common sources.
BPA is commonly found in plastic food-storage containers, some water bottles, and linings of metal food cans. Because prior research has found that BPA can pose health risks from its endocrine-disrupting, estrogen-like properties, reducing all exposure is important to health. Through a literature review, researchers found BPA is released from dental resins through enzymes in saliva, and is detectable in saliva for up to 3 hours after resin placement. How much is absorbed is not known.