临床上分为三型:型(Dentinogenesis Imperfecta type,DGI-)主要见于成骨发育不全(OsteogenesisImperfecta,OI)患者的口腔,其病因被广泛认为是由型胶原基因突变导致.
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结论常规超声检查对胎儿成骨发育不全的筛检有着重要意义，为产前诊断胎儿骨骼发育异常的首选方法。
Conclusion: Conventional ultrasound plays an important role in checking fetal dysostosis and is the first method in diagnosing the fetal dysostosis before birth.
结果28例成骨发育不全患者，均有四肢短小并多发骨折，其中16例胎儿羊水在正常范围，12例羊水较多。
Results: Limb shortness and multiple fractures were presented in all cases. Among them, fetal amniotic fluid of 16 cases were normal and 12 cases with excessive fetal amniotic fluid.
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