News Health & Medicine 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 July 16, 2012 at 7:54 am - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print 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.