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由于Ⅲ类错颅面形态的表现具复杂性和多样性，本文目的是探讨骨性前牙反儿童颅面形态的类型。研究对象为１０～１３岁骨性前牙反患者，共６９例，其中男性３５例，女性３４例，平均１１．６岁。通过反映颅底结构、上颌和下颌骨长度、面部矢状和垂直向关系、牙及牙槽、软组织形态的１９项头测量指标的样本聚类分析，将本组病例儿童的颅面形态划分为四个亚类，其中上颌发育不足、下颌长度正常，但位置前移以及前下面高不足是儿童骨性前牙反最常见的一种类型。结果表明在分析骨性Ⅲ类错时，应结合多项头测量指标综合分析。本研究结果为临床选择矫形治疗适应证和方法提供了参考依据。
Due to the complexity and diversity of the craniofacial morphology of Class Ⅲ malocclusion, the purpose of this paper is to explore the types of craniofacial morphology in children with anterior crossbite. A total of 69 patients (10 males and 13 females, average age 11.6) were enrolled in this study. The craniofacial morphology of children in this group was divided into three groups according to the sample cluster analysis of 19 head indices that reflected the structure of the skull base, the length of maxilla and mandible, facial sagittal and vertical relationship, tooth and alveolar shape and soft tissue morphology Four subcategories, of which the maxillary hypoplasia and mandibular length are normal, but the most common type of anterior skeletal anteriorisis in children is the most common type of anterior skeletal anterior crossbite in children. The results show that in the analysis of skeletal Class Ⅲ misdiagnosis, should be combined with a number of head measurement index comprehensive analysis. The results of this study provide a reference for the clinical choice of indications and methods of orthopedic treatment.