White dental fillings may impair kids' behavior

White dental fillings may impair kids' behavior

Effects seen only for fillings that used bis-GMA, a resin derived from bisphenol A

By Janet Raloff, 17:12 PM July 13, 2012

A resin in the most commonly used white composite dental fillings may be linked to subtle neuropsychological deficits in children.

The association appears in reanalyzed data collected from 434 children as part of a trial begun roughly a decade ago. The original study was designed to probe for IQ or other neurobehavioral impacts of the mercury that can be released by metal-amalgam dental fillings. Half of the kids received amalgam fillings for cavities in back teeth, the rest got composite b...

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