David J. Zajac, PhD, CCC-SLP, FASHA
David J. Zajac, PhD, CCC-SLP, FASHA is Professor in the Department of Dental Ecology, School of Dentistry, and Adjunct Associate Professor in the Division of Speech and Hearing Sciences, Department of Allied Health Sciences, School of Medicine at the University of North Carolina at Chapel Hill. He also serves as director of speech-language pathology in the Craniofacial Center. Dr. Zajac completed his master's degree and PhD in communicative disorders at the University of Pittsburgh. He has over 25 years of experience in the assessment and treatment of children and adults with craniofacial disorders. His research interests include the acoustics and aerodynamics of speech production by normal individuals and those with cleft palate. His research has been funded by the National Institutes of Health for over 20 years. He has presented numerous research papers, written six book chapters, and authored or co-authored over 40 research articles. Dr. Zajac is a Fellow of the American Speech Language Hearing Association and past associate editor for the Journal of Speech, Language, and Hearing Research.