Frank J. M. Verstraete, DrMedVet, BVSc(Hons), MMedVet, Diplomate AVDC, ECVS and EVDC, AVDC-ZWD, FF-AVDC-OMFS Professor of Dentistry and Oral Surgery Department of Surgical and Radiological Sciences School of Veterinary Medicine University of California Davis, California Milinda J. Lommer, DVM, Diplomate AVDC Medical Director, Aggie Animal Dental Center, Mill Valley, California Health Sciences Associate Clinical Professor Volunteer, Department of Surgical and Radiological Sciences, University of California, Davis, California, USA Boaz Arzi, DVM, Diplomate AVDC and EVDC, FF-AVDC-OMFS Associate Professor of Dentistry and Oral Surgery Department of Surgical and Radiological Sciences School of Veterinary Medicine University of California Davis, California Consulting Editor (Surgical Anatomy): Abraham J. Bezuidenhout, BVSc, DVSc Department of Biomedical Sciences, Cornell University, Ithaca, New York