摘要：

报道2例双胞胎姐妹同时乳前牙反，无遗传病学史、否认家族史。探讨反患者的形成原因，对乳牙反的病因学诊断要结合家族史和具体的临床特点，此罕见病例进一步引起了我们对反的病因诊断的深思

Abstract:

 Two cases of twin sisters with simultaneous anterior and posterior occlusion was reported, without genetic history or family history. To explore the causes of the formation of patients with antiodontia, the etiological diagnosis of deciduous teeth antiodontia should be combined with family history and specific clinical characteristics, this rare case further caused us to ponder the etiological diagnosis of antiodontia.

Key words:

font-size: 10.5pt, mso-spacerun: 'yes', mso-ascii-font-family: Calibri, mso-hansi-font-family: Calibri, mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0000pt">twins, front teeth, reverse over bite

中图分类号: 

• R782.4