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Study: BPA-Based Fillings May Change Kids' Behavior

iStockphoto/Thinkstock(NEW YORK) -- As if a visit to the dentist for some kids isn't traumatic enough, a new study finds that many who received fillings made from a widely-used, but controversial plastics chemical may suffer minimal yet long-term emotional problems.

The study, published in the journal Pediatrics, followed more than 500 children and found that children who got composite fillings made with the chemical bisphenol-A, or BPA, tended to experience behavioral differences over a five-year period.  The more BPA-based fillings a child had, the more likely he or she was to show these changes.

Children with other types of fillings, however, did not experience any differences.

Researchers are not sure if it's the BPA or something in the resin causing the problems and say further investigation is warranted.

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ABC News Radio