Long-term Effects of Augmented Corticotomy-Assisted Orthodontics in Patients With Mandibular Anterior Alveolar Defect. Issue 8 (November 2019) - Wang, Bo
Abstract : Objective: The purpose of this study was to quantitatively investigate the long-term effects of augmented corticotomy-assisted orthodontics in adult patients with alveolar defect in mandibular anterior region. Materials and Methods: Thirty lower incisors with alveolar defect on the labial sides were included in this study from 10 adult patients received augmented corticotomy-assisted orthodontics in mandibular anterior region. Cone-beam computed tomography images were obtained before orthodontic treatment (T0), 3 months after augmented corticotomy (T1) and 2 years after removal of orthodontic appliance (T2). Measurements of variables at different time points were compared using Student–Newman–Keuls test. Results: Each patient completed augmented corticotomy-assisted orthodontics successfully. In the 30 subjects studied, root length and bone thickness on the labial side at 1/2 root length level were maintained from T0 to T2 ( P >.05). Bone thickness at 3/4 root length level increased from T0 to T1 ( P <.001), then decreased from T1 to T2 ( P <.001), and which of T2 is greater than that of T0 ( P <.001). Bone thickness at root apex level increased from T0 to T1 ( P <.001), and remained steady from T1 to T2 ( P >.05). Conclusions: Augmented corticotomy-assisted orthodontics is a promising approach for the treatment of adult patients with alveolar defect, which showed stable long-term effect of bone augmentation and minimal periodontal iatrogenic sequelae during treatment. Abstract : Supplemental Digital Content is available in the text