SECTION 1 Basic Principles and Concepts 1 The New Perspectives on the Face (contributed by M. MICHAEL COHEN JR.) 2 Pioneers and Milestones in the Field of Orthodontics and Orthognathic Surgery 3 Definition and Prevalence of Dentofacial Deformities 4 Hereditary, Developmental, and Environmental Influences on the Formation of Dentofacial Deformities 5 Orthodontic Considerations in the Evaluation and Treatment of Dentofacial Deformities 6 Periodontal Considerations in the Evaluation and Treatment of Dentofacial Deformities 7 Psychosocial Considerations in the Evaluation and Treatment of Dentofacial Deformities 8 Speech, Mastication, and Swallowing Considerations in the Evaluation and Treatment of Dentofacial Deformities 9 Temporomandibular Disorders: Effects of Occlusion, Orthodontic Treatment, and Orthognathic Surgery 10 Nasal Airway Considerations in the Evaluation and Treatment of Dentofacial Deformities 11 Anesthesia Techniques, Blood Loss/Fluid Replacement, Airway Management & Convalescence in the Treatment of Dentofacial Deformities SECTION 2 Planning, Surgical Technique, and Complications 12 Orthognathic Surgery Treatment Planning 13 Standard Analytic Model Planning for Orthognathic Surgery 14 Mandible-First Analytic Model Planning for Orthognathic Surgery 15 Sequencing of Orthognathic Procedures: Step-by-Step Approach 16 Complications Associated with Orthognathic Surgery 17 Malocclusion after Orthodontics and Orthognathic Surgery: Prevention and Treatment Pitfalls 18 Grafts Frequently Used During Orthognathic Surgery and for Adjunctive Procedures 19 Virtual Surgery Planning (NEW CHAPTER)