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颅面部的生长发育影响着正畸治疗的效果。由于每位正畸患者有各自的生长发育型,所以估计他们的骨生长是非常困难的。如果在临床治疗中只考虑均值和年龄就可能出现错误。 下颌骨的生长对正畸治疗有很大影响,因此,为了评价下颌骨的生长,作者对下颌骨生长与拇指末节骨愈合期的关系进行了研究。 结果 ①下颌骨纵向长度(Gn-Cd)随年龄的变化可用对数曲线表示(见附图),曲线上定出三点:P,G,V(生长高峰期).E_1期(拇指末节骨完全愈合期),以及
The growth and development of craniofacial area affect the effect of orthodontic treatment. Since each orthodontic patient has its own growth and development type, estimating their bone growth is very difficult. If clinical treatment only considers the mean and the age may be wrong. The growth of the mandible has a significant impact on the treatment of orthodontics. Therefore, in order to evaluate the growth of the mandible, the authors studied the relationship between mandibular growth and distal phalangeal healing. Results ① The longitudinal length of the mandible (Gn-Cd) can be expressed as a logarithmic curve with age (see the attached figure), and three points are defined on the curve: P, G and V Complete healing), as well