PAOO is a procedure synergizing the optimal use of the principles of Periodontics and Orthodontics,beneffitting both the patient as well as the dentist. The role of periodontists in the PAOO is becoming increasingly important. It is important for the periodontist to know the details of the procedure to fulfill the need of the patient and thus helping the orthodontist in attaining the quicker and stable results.This E book is an attempt to understand the periodontally accelerated osteogenic orthodontics and its effect on treatment time as compared to that of conventional orthodontics as it is a relatively new topic with scarce data in literature.