Development of the dentition is a process that occurs in an organized manner under the control of genetic and environmental factors from the primary dentition through the transitional stage to the permanent dentition resulting in a functional, aesthetic and stable occlusion. Thus, premature loss of primary teeth needs careful attention during development of the dentition. There are various methods involved in the procedure which are discussed in this book. Hence, the title "DEAL BEFORE DAMAGE (PREVENTIVE ORTHODONTICS).