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颌骨偏斜的三维分析及分类研究

发布时间:2019-01-07 11:58
【摘要】:目的:以面部及下颌骨正中矢状面为参考平面,从颌骨位置和下颌骨轮廓2个方面对面部偏斜进行分析和分类,为临床诊疗提供依据。方法:利用ProplanCMF根据86例面部偏斜患者的术前CBCT资料构建骨组织的三维模型及三维测量体系,从颌骨位置和下颌骨轮廓2个方面分析偏斜特点并建立一种分类体系。结果:颌骨偏斜分为3类:位置偏斜、下颌骨形状偏斜、位置和下颌骨形状均偏斜。位置偏斜有T类(水平向偏斜)和V类(垂直向偏斜)。T1和T3类中,偏侧的下颌骨体长度、下颌升支高度、正面升支倾斜度、侧面升支倾斜度和对侧相比有统计学差异(P0.01);下颌平移偏斜病例数太少,不纳入统计分析;V类中,偏侧的正面升支倾斜度、下颌升支高度与对侧相比有统计学意义(P0.01),而下颌骨体长度、侧面升支倾斜度无统计学意义(P0.05)。偏侧与对侧的轮廓测量项目相比有统计学意义(P0.05)。结论:颌骨偏斜分类系统能够详细的反映颌骨位置和下颌骨形状的偏斜特点,对疾病的诊疗提供一定的临床依据。
[Abstract]:Objective: to analyze and classify the facial oblique from the position of the mandible and the outline of the mandible, taking the median sagittal plane of the face and mandible as the reference plane, so as to provide the basis for clinical diagnosis and treatment. Methods: according to the preoperative CBCT data of 86 patients with facial deviation, ProplanCMF was used to construct a three-dimensional model of bone tissue and a three-dimensional measurement system. The characteristics of deviation were analyzed and a classification system was established from two aspects: jaw position and mandibular outline. Results: there were three types of mandibular oblique: position oblique, mandibular shape oblique, position and mandibular shape oblique. There are T (horizontal skew) and V (vertical oblique) in position oblique. In T1 and T3, the length of mandible body, height of ramus of mandible, inclination of ascending branch in front of T 1 and T 3, The slope of lateral ascending branch was significantly different from that of contralateral side (P0.01). The number of cases of mandibular translation deflection was too small to be included in statistical analysis. In category V, there were significant differences in the inclination of the ascending branches and the height of the ramus between the two sides (P0.01), but there was no significant difference in the length of the mandibular body and the slope of the ascending branches of the lateral side (P0.05). Compared with the contralateral side, the profile measurement items were statistically significant (P0.05). Conclusion: the classification system of mandibular deviation can reflect the position of jaw and the shape of mandible in detail, and provide some clinical basis for the diagnosis and treatment of the disease.
【作者单位】: 南昌大学附属口腔医院江西省口腔生物医学重点实验室;天津医科大学;天津市口腔医院正颌外科;
【分类号】:R782.2

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