A three-dimensional study of hemimandibular hyperplasia, hemimandibular elongation, solitary condylar hyperplasia, simple mandibular asymmetry and condylar osteoma or osteochondroma

To investigate the morphological features of hemimandibular hyperplasia (HH) in comparison to other condylar hyperplasia-associated asymmetries, including hemimandibular elongation (HE), solitary condylar hyperplasia (SCH), simple mandibular asymmetry (SMA) and condylar osteoma or osteochondroma (CO...

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Bibliographic Details
Published in:Journal of cranio-maxillo-facial surgery 2019-11, Vol.47 (11), p.1665-1675
Main Authors: Sun, Ru, Sun, Lisha, Sun, Zhipeng, Li, Gang, Zhao, Yanping, Ma, Xuchen, Sun, ChongKe
Format: Article
Language:English
Subjects:
Asymmetry
Condyle
Deformity
Dentistry
Facial Asymmetry - diagnosis
Humans
Hyperplasia
Image Processing, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Mandible
Mandible - abnormalities
Mandible - pathology
Mandibular Condyle - pathology
Osteochondroma
Osteoma
Retrospective Studies
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Summary:To investigate the morphological features of hemimandibular hyperplasia (HH) in comparison to other condylar hyperplasia-associated asymmetries, including hemimandibular elongation (HE), solitary condylar hyperplasia (SCH), simple mandibular asymmetry (SMA) and condylar osteoma or osteochondroma (COS). A total of 31 HH, 9 HE, 6 SCH, 10 SMA and 10 COS patients were included in this study. Clinical documentation, panoramic radiography and computed tomography data were retrospectively reviewed. The three-dimensional measurements were performed on multi-planar reformation images and volume rendering images. The accuracy of the subjective radiological signs was evaluated using sensitivity, specificity and receiver operating curve analysis. Discriminant analysis was performed to generate predictive formulas using quantitative data. The condyles in HH were regularly or irregularly enlarged, with significantly enlarged anterior-posterior length [16.2/5.29 (mean/SD, mm) P 
ISSN:1010-5182
1878-4119
DOI:10.1016/j.jcms.2019.08.001