成人骨性Ⅲ类错患者各亚型软硬组织面型特征及相关性分析  

A morphological study of the characteristics and relationship between soft tissue and hard tissue profile in adolescents of skeletal Class Ⅲ malocclusion with different facial types

作　　者：晏艳[1,2] 杜熹[2] 

机构地区：[1]昆明市第一人民医院口腔科,昆明650011 [2]口腔疾病研究国家重点实验室华西口腔医院正畸科(四川大学),成都610041

出　　处：《国际口腔医学杂志》2014年第4期401-405,共5页International Journal of Stomatology

摘　　要：目的通过对骨性Ⅲ类错患者硬组织面型聚类分析,研究各亚类软硬组织面型间的差异,加深对骨性Ⅲ类错患者面型构成的认识。方法选择344例18～25岁女性骨性Ⅲ类错患者为研究对象,在头颅侧位片上测量反映软硬组织面型的22项指标,根据硬组织面型特征进行聚类分析,研究各亚类软组织面型特征,进行软硬组织面型的相关分析。结果聚类分析将骨性Ⅲ类错患者分为10个亚类,有40%的骨性Ⅲ类错患者软硬组织矢状面型不一致,在上颌发育不足、下颌基本正常和上下颌均发育不足亚组中直面型构成比接近50%。软组织面型特征与矢状骨面型关系较大,垂直骨面型特征对软组织面型影响较小。结论面部硬组织是构成软组织面型的基础,但是各亚类骨性Ⅲ类错患者软组织代偿能力不同,要针对患者各自的特点设计矫治方案。Objective To classify skeletal Class Ⅲ malocclusion samples into specifi c skeletal types and to analyze the differences between the soft and hard tissue profi le in different facial types. Methods Three hundred and forty-four patients between 18 to 25 years old of skeletal Class Ⅲ malocclusion were selected. 22 variables describing soft tissue and hard tissue profi le were measured on each cephalograph. Cluster analysis was then used to classify the skeletal patterns. To study the characteristics of subgroups and relationship between soft tissue and hard tissue profi le. Results Cluster analysis was used to classify the skeletal patterns into ten types. The disharmony between the soft and hard tissue profi le was found in 40% of the skeletal Class Ⅲ malocclusion. There were about 50% of the skeletal Class Ⅲ malocclusion with straight profi le mainly included in subgroups of maxillary retrusion with normal mandibular and a combination of mandibular and maxillary retrusion. Conclusion Hard tissue profi le is the basis of the soft tissue profi le. It is different of the soft tissue integument of the the skeletal Class Ⅲ malocclusion subgroups.

关 键 词：Ⅲ类错[牙合] 面型 骨型 

分 类 号：R783.5[医药卫生—口腔医学]