Section I: The Orthodontic Problem 1. Malocclusion and Dentofacial Deformity in Contemporary Society Section II: The Development of Orthodontic Problems 2. Concepts of Growth and Development 3. Early Stages of Development 4. Later Stages of Development 5. The Etiology of Orthodontic Problems Section III: Diagnosis and Treatment Planning 6. Orthodontic Diagnosis: The Problem-Oriented Approach 7. Orthodontic Treatment Planning: From Problem List to Specific Plan Section IV: Biomechanics, Mechanics and Contemporary Orthodontic Appliances 8. The Biologic Basis of Orthodontic Therapy 9. Mechanical Principles in Orthodontic Force Control 10. Contemporary Orthodontic Appliances Section V: Treatment in Preadolescent Children 11. Moderate Non-Skeletal Problems: Preventive and Interceptive Treatment 12. Complex Non-Skeletal Problems Section VI: Growth Modification 13. NEW! Growth Modification in Transverse and Class III Problems 14. NEW! Growth Modification in Class II, Open Bite/ Deep Bite, and Multi-Dimensional Problems Section VII: Comprehensive Orthodontic Treatment in the Early Permanent Dentition 15. The First Stage of Comprehensive Treatment: Alignment and Leveling 16. The Second Stage of Comprehensive Treatment: Correction of Molar Relationship and Space Closure 17. The Third Stage of Comprehensive Treatment: Finishing 18. Retention Section VIII: Treatment for Adults 19. Special Considerations in Orthodontics for Adults 20. Surgical-Orthodontic Treatment