MicroRNA‑21 serves an important role during PAOO‑facilitated orthodontic tooth movement

Periodontal accelerate osteogenesis orthodontics (PAOO) is an extension of described techniques that surgically alter the alveolar bone; however, the specific mechanism underlying the technique is not completely understood. The aim of the present study was to evaluate the roles of microRNA (miR)‑21 during PAOO. Sprague‑Dawley rats were divided into the following four groups: i) Group tooth movement (TM), underwent TM and were administered normal...