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Variation in maxillary and mandibular incisor and molar position with long, normal and short lower anterior face height: A cone beam computed tomography study

Posted on:2010-07-07Degree:M.ScType:Thesis
University:University of Toronto (Canada)Candidate:Laski, Brian NFull Text:PDF
GTID:2444390002473560Subject:Health Sciences
Abstract/Summary:
Background. The intraoral findings of patients presenting with differing lower anterior face heights are variable.;Methods. Upper anterior face height over lower anterior face height ratios were established from 111 pretreatment iCATRTM CBCT scans and analyzed with AMIRARTM imaging software. Maxillary and mandibular central incisor and first molar vertical heights and buccolingual inclinations were measured relative to fixed reference planes. Mean differences between the groups were assessed using an analysis of variance.;Results. Clinically significant differences in dentoalveolar heights, but not buccolingual inclinations, between the face height groups were found.;Conclusions. Face height and dentoalveolar position can be determined using CBCT image data. Vertical height, not buccolingual inclination, is associated with differences in lower anterior face height.;Objective. To analyze the pre-treatment cone beam computed tomography (CBCT) records of orthodontic patients for determination of dentoalveolar positional differences in subjects classified into three groups: long, normal and short lower anterior face height.
Keywords/Search Tags:Lower anterior face height, Cone beam computed tomography, Health sciences, Maxillary and mandibular
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