Stability of surgical correction of anterior open bite
Date
2012
DOI
Authors
Alfalasi, Wujood
Version
OA Version
Citation
Abstract
Objective: To determine the long-term stability of the surgical correction of skeletal open bites using cephalometric radiographs taken at different intervals of the treatment. The use of separate dental and skeletal cephalometric measurement to determine whether the major changes that took place post-treatment will result in instability of the bite closure are dental or surgical/skeletal in nature.
Design: A retrospective pilot study
Materials and Methods: The present retrospective study utilized lateral cephalometric radiographs to analyze and measure the stability of skeletal open bites after orthognathic surgery. Lateral cephalometric x-rays of 11 adults (non-growing), 8 female and 3 male patients with a skeletal open bite treated at Sheikh Khalifa Medical City from the year 2002 to 2008 were collected. The patients selected had a pre-treatment clinical open bite of more than 2mm. Nine of the subjects had undergone bi-maxillary surgery to correct the malocclusion, whereas two had a single jaw surgery. Surgeries included bi-sagittal split osteotomies (BSSO) for the mandible and a Le-Fort I down fracture for the maxilla, two had additional chin surgery carried out with the BSSO. Internal rigid fixation using plates and screws was used during each procedure. The same maxillofacial surgeon performed all surgeries. X-rays were obtained at two different time points, immediately post-surgery Tl and a minimum of one year follow up T2.
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Thesis (MSD) --Boston University Institute for Dental Research and Education, Dubai, 2012 (Orthodontics).
Includes bibliographic references: leaves 32-35.
Thesis (MSD) --Boston University Institute for Dental Research and Education, Dubai, 2012 (Orthodontics).
Includes bibliographic references: leaves 32-35.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.