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Possible BPA Link to Tooth Defect Identified


A tooth enamel defect affecting up to 18 percent of children ages 6 to 9 years may be linked to BPA, a recent study concluded.

The enamel defect, MIH or molar incisor hypomineralization, causes white or brown opaque spots on some children's top and bottom middle four teeth. A study of rats that were exposed to the industrial chemical BPA showed defects similar to those of MIH. Teeth exhibiting MIH can become sensitive, painful, and prone to cavities.

BPA is found in many plastic products and food containers. Until recently, it was also found in packages, bottles and cups intended for use by infants and small children. This study is the first to show that BPA affects dental cells and tooth enamel synthesis.

The study was presented at the Endrocrine Society's annual meeting.





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