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Objective: To establish the database of the different sagittal facial type adult nasal form of imaging features of Shandong Province; analysis of different gender and different sagittal facial type adult nasal morphological differences, to assess gender and sagittal face factors of nasal morphology characteristics, and further analysis of the correlation between the nasal morphology and craniofacial skeletal morphology and nasal form of various measuring the correlation between the indicators for the orthodontic clinical development of rational, feasible plan of correction to provide important reference . Materials and Methods: 150 cases selected adults in Shandong Province mistake (occlusal) deformity patients as research subjects, patients are middle-face angle, which the class Ⅰ the facial type samples 54 (26 male, female 28), Class Ⅱ bone surface type sample of 48 people (male 25, female 23) class III facial type sample of 48 people (24 male, 24 female), digital X-ray skull lateral radiographs taken before treatment were measured and analyzed. The nasal morphology measure 12, the craniofacial bone morphogenetic measure 15. SPSS 12.0 statistical software to analyze the measurement results. The comparative analysis of various types of t-test (α = 0.05), and comparative analysis of the differences in the morphological characteristics of the different samples of each type of sagittal facial type gender nose; using multiple sets of one-way ANOVA analysis sagittal face nasal morphological characteristics differences between samples; Person correlation analysis to further explore the correlation between the nasal form of craniofacial bone morphology and nasal form of the correlation between each measurement indicators. 1. Ⅰ class II class, class III bone samples of face, male - female compared to long nasal dorsum, nasal depth 1, nasal depth 2, the nasal peak height, nasal bone length 5 nose morphometric indicators have significant differences, and their male measured values ??are larger than females measured values;, I facial type samples, men - women compared on the nose and chin angle, nasal bone angle 2 nose morphometric indicators having a significant difference. 2. Ⅰ Class II Class III Class bone samples of face, nose and lips, nose and chin angle, angle of the face the four nasal form of nasal bone length measurement indicators are significant differences. Part of the nasal morphology and craniofacial bone morphogenetic mostly low to moderate correlation between the measurement indicators. Nasal morphology there are low to moderate correlation between each measurement indicators. Conclusion: male nose more women a more prominent position in the face, so the development of orthodontic treatment programs should take into account gender differences. Especially critical cases, taking into account the male nose, well-developed, to obtain or maintain good soft tissue profile extraction treatment more likely. 2. I, II, class III bone samples of face, nose morphological differences. Which reflect the between three facial type samples nose size measure, no significant difference, but due to the impact of the upper lip and chin position, nose and lips, nose and chin angle, face angle 3 measure on the existence of significant differences. The shape, size and position of the face of the nose is associated with the upper and lower jaws of the length, height, position. 4 of the internal structures of the nose are interrelated through orthodontic treatment the Orthognathic surgery change any part may lead to changes in the entire nose shape, which led to the entire soft tissue cephalometric morphology changes. 5. Nose is located in the center of the face, and other structures are closely related, this may lead to undesirable orthodontic and orthognathic surgical effect is ignored.
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