Abstract: Objective: To quantitatively evaluate the effect of micro-osteotomy assisted orthodontic treatment on alveolar bone dehiscence in anterior teeth area. Methods: Eight patients with alveolar bone dehiscence in the anterior teeth area were selected to accept micro-osteotomy assisted orthodontic treatment in Foshan Stomatological Hospital from August 2014 to August 2015. The lower teeth periodontal status was evaluated at different stages by cone beam CT (CBCT). Data was processed using SPSS 21.0 software package. Results: There was no significant difference in the thickness and height of lingual alveolar bone before and six months after surgery, the thickness of the labial alveolar bone was significantly increased (P<0.05) and the height of the labial alveolar bone was significantly increased six months after surgery (P<0.05). Conclusion: Treatment effect on alveolar bone dehiscence in anterior teeth area was significant. With the application of micro-osteotomy assisted orthodontic technique, the height and thickness of the labial alveolar bone in the anterior teeth area increases significantly six month after surgery.

Key words: Micro-osteotomy assisted orthodontics , Alveolar bone dehiscenc0, Cone beam computed tomography