Autism Caused By Prenatal Chemical Exposure? Researchers Studying Baby Teeth Of Children To Determine Risk Factors October 5, 2016 Research that will be undertaken by the A.J. Drexel Autism Institute was mentioned in an Oct. 3 post by the Parent Herald. The article profiled an effort led by Craig Newschaffer, PhD, professor and director of the Institute, to use children’s baby teeth to determine the role chemical exposures play in autism risk. View Story