Dr. Prehn focuses his practice on the cusp between medicine and dentistry, providing care for patients with sleep related breathing disturbances as well as Headache and TMJ. Dr. Prehn is Board Certified Diplomate of both the American Board of Orofacial Pain and the American Academy of Dental Sleep Medicine. Dr. Prehn earned his DDS at the Marquette School of Dentistry in 1981. His postgraduate work was accomplished at the Parker Mahan Facial Pain Center at the University of Floridain 1993. His limited practice, Center for Facial Pain and Dental Sleep Medicine, is in The Woodlands, Texas (North of Houston). He teaches at the UT Dental branch in Houston, as well as giving many seminars and conferences to other Dentists, Physicians and health care professionals around the state and nation.