Gordon L. Pattison, DDS, served as assistant professor at both USC School of Dentistry and University of California, Los Angeles, School of Dentistry. He is the co-author with his wife, Anna M. Pattison, RDH, MS, of the textbook Periodontal Instrumentation. He currently maintains a private practice in Brentwood, Calif, and serves on Dimensions' Peer Review Panel.