Abstract: Recently, accelerating orthodontic tooth movement has been one of focus for orthodontist. The previous study found that periodontally accelerated osteogenic orthodontics（PAOO）can effectively accelerate orthodontic treatment. Based on the regional acceleratory phenomenon（RAP）, this technology evolved in the past few years. PAOO claims to have several advantages. These include accelerated tooth movement, a reduced treatment time, less root resorption, enhanced alveolar thickness，differential tooth movement and, finally, more post-orthodontic stability. This paper provides an overview of the history and mechanism of PAOO. Their current clinical study and clinical application were introduced to let the readers have more comprehensive understanding for PAOO.

Key words: corticotomy, periodontally accelerated osteogenic orthodontics, tooth movement