The accelerating pace of changes in orthodontics presents new challenges and problems. The changes are profound and may be uncomfortable to some. The old ways of treatment may not suffice and all of us need to keep our eyes and ears open. This topic has at its core the omnipresent question faced practically everytime orthodontists plan a treatment for the patient. "Do we need to extract teeth or can the necessary space be created without extraction?" This book will review the various methods of gaining space- 1. Expansion. 2. Proclination of anteriors. 3. Extraction. 4. Proximal stripping. 5. Molar distalization. 6. Uprighting of molars. 7. Derotation of posterior teeth.