| Communications |
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| Establishment of reference mandibular plane for anterior alveolar morphology evaluation using cone beam computed tomography |
| Rong-yang Wang, Min Han, Hong Liu, Chun-ling Wang, Hong-hong Xian, Lei Zhang, Shi-jie Zhang, Dong-xu Liu |
| Department of Orthodontics, Shandong Provincial Key Laboratory of Oral Biomedicine, Shandong University, Jinan 250012, China; Department of Stomatology, Qianfoshan Hospital of Shandong Province, Jinan 250014, China; Department of Stomatology, the Second Hospital of Shandong University, Jinan 250033, China |
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Abstract To propose a method of establishing the reference mandibular plane (MP), which could be reestablished according to the coordinates of the reference points, and then facilitate the assessment of anterior alveolar morphology using cone beam computed tomography (CBCT), sixty patients with bimaxillary protrusion were randomly selected and CBCT scans were taken. The CBCT scans were transferred to Materialism’s interactive medical image control system 10.01 (MIMICS 10.01), and three dimensional models of the entire jaws were constructed. Reference points determining the reference MP were positioned in the coronal, axial, sagittal windows, and the points were exactly located by recording their coordinates in the interfaces of software. The reference MP provided high intra-observer reliability (Pearson’s r 0.992 to 0.999), and inter-observer reliability (intra-class correlation coefficients (ICCs) 0.996 to 0.999).
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Received: 22 February 2012
Published: 05 November 2012
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