| Objective:This study to explore the different vertical facial type in patients with EMG features. For orthodontic treatment work, muscle function and craniofacial morphology to grasp the interaction between the relationship inferred muscle function in the formation of malocclusion deformity, treatment and after treatment to maintain the role of reference.Methods:With a total of 48 people (male 24, female 24) were selected from 2008 to 2009,who went to Tianjin Medical University Dental Hospital for orthodontic treatment. To incorporate the standard random selection Angle Class I occlusion and permanent teeth in patients. Require no mandibular deviation, no joint symptoms. Filming X ray skull lateral positioning films, and through winceph 8.0 software for analysis. Require the upper and lower jaw bone of the sagittal relationship I type (0° |
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