Detection And Treatment Of Malocclusions And Other Dental Deformities

2362 Words10 Pages
Abstract
Detection and treatment of malocclusions and other dental deformities are a considerable field of work in the plan of orthodontic treatment. Severe malformations of the midface such as maxillary or mandibular deformity can be treated by the distraction and reformation of skull bones. During an operation, the appropriate bony part of the mid-face is separated from the rest of the skull (osteotomy), slowly moved into the ideal position by way of a distraction device. In the current clinical practice, planning for orthodontic treatment and orthognathic surgery was based on Computed Tomography (CT) data sets. CT images are inefficient for helping the orthodontists and surgeons in treatment and surgical planning. A tool is needed to help the physicians and surgeons in the treatment planning in order to anticipate the results and give the accurate decision, in this paper there are preliminary descriptive studies on DICOM images of the skull to help the orthodontists by providing the following algorithms: Segmentation of the lower jaw (mandible), Segmentation of the upper jaw (maxilla) from CT data, Segmentation of upper teeth, each tooth and computation of mandible volume.
Keywords: CT-scans, threshold, K-mean, Region growing, DICOM.
Introduction
The need for clear images of cranial morphology has an important role in the progress of treatment and planning for craniofacial surgery [1]. Improvements in three-dimensional (3D) imaging [2] allowed shaping analysis and

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