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Oral and Maxillofacial Surgery / Hospital Dentistry

Combined Appointments


Lawrence Marentette, MD, FACS
Professor, Department of Otolaryngology, Division, Facial Plastic and Reconstructive Surgery
Professor, Department of Neurosurgery
Professor, Department of Surgery, Section of Oral and Maxillofacial Surgery
Medical Director Destination Programs

Dr. Lawrence Marentette is a Professor in the Department of Otolaryngology-Head and Neck Surgery/Division of Facial Plastic and Reconstructive Surgery, Department of Neurosurgery, and Department of Surgery/Oral and Maxillofacial Surgery. He is currently serving as the Medical Director of the Destination Programs.  In the past, Dr. Marentette has served as the leader of the Cranial Base Surgery Program.  Dr. Marentette was recruited from the University of Minnesota in 1993 where he was the Director of the Cranial Base Program.  The Cranial Base Program is a model destination program and delivers outstanding multidisciplinary care to patients that require the expertise of Otolaryngology and Neurosurgery.


Jonathan McHugh, MD
Assistant Professor, Pathology

Dr. McHugh received his BS and MA degrees from the University of Missouri-Columbia in biological sciences and cellular biology, respectively. He received his MD from the University of Nebraska Medical Center in 2002. He completed residency training in Anatomic and Clinical Pathology at the University of Michigan, serving as Assistant Chief Resident (2004-2005) and Chief Resident (2005-2006). Following residency training, he completed a fellowship in Head and Neck Pathology with Dr. E. Leon Barnes at the University of Pittsburgh Medical Center. In July 2007, he joined the faculty in the Division of Anatomic Pathology as Assistant Professor.


Louise O'Brien, PhD, MS
Associate Professor
Sleep Disorders Center, Department of Neurology

Dr. O’Brien is an Associate Research Scientist in the Department of Oral & Maxillofacial Surgery and an Associate Professor (Research) in the Sleep Disorders Center, Department of Neurology. She received her BSc from the University of Leeds, UK and her PhD from Keele University, UK. She completed a maternal and infant health postdoctoral position in the United Kingdom before relocating to the United States for a fellowship in pediatric sleep research at the University of Louisville. Her research interests include sleep disordered breathing and neurobehavioral outcomes in children including those with craniofacial syndromes and cleft palate. Dr. O’Brien’s research also focuses on the impact of sleep disorders during pregnancy on both maternal and infant health. She participates in the training of sleep medicine fellows and acts as a mentor for students interested in sleep research.


Paul Smythe, MD
Assistant Professor, Anesthesiology

Dr. Paul Smythe has been a lecturer at the Dental School since 2004. All of his diplomas are from the University of Michigan as is his medical training: AB in English Literature, 1975; DDS, 1981; MD 1993; residency in Anesthesiology, 1997; fellowship in Anesthesia Critical Care, 1998. After a year in private practice he returned to the Main University Hospital and specializes in Neuroanethesia and Anesthesia for Ear, Nose, and Throat surgery.