锁骨颅骨发育不全(简称CCD)系一少见的遗传性疾病。有不同程度的锁骨发育不全,颅缝骨化闭合延迟或不能,颅横径过大,囱门闭合延迟或不闭合,并有其它骨胳发育障碍及牙(牙合)明显异常。我科曾收治1例并进行了较系统检查及修复。现报告如下: 患者,女,23岁,因全口多数乳牙未脱就诊。 患者自述下前乳牙于7-8岁时脱落,随后部分下前恒牙萌出,但其它乳牙一直未脱,相应恒牙亦至今未萌。因有碍美观及咀嚼功能,患者曾多次到口腔科 Clavicular skull hypoplasia (referred to as CCD) is a rare genetic disease. There are varying degrees of subclavian hypoplasia, cranial suture closure delay or failure, excessive transverse cranial diameter, closed or delayed closure of the foramen, and other skeletal development disorders and teeth (occlusal) obvious abnormalities. My department had admitted to a case and conducted a more systematic examination and repair. The report is as follows: Patient, female, 23 years old, because the majority of the majority of deciduous teeth did not take treatment. The patient reported that the anterior deciduous teeth fell off at the age of 7-8 years, followed by the eruption of some of the anterior permanent teeth, but the other deciduous teeth never showed off. Due to obstruct appearance and chewing function, the patient has repeatedly to the dentistry