| Popis: |
Maxillary protaction is most commonly used for the treatment of growing skeletal class Ⅲ patients with a maxillary deficiency. The present article reviewed the advances in the use of maxillary protraction, including the case selection, the timing of the treatment, the effectiveness of rapid maxillary expansion, the pattern of the maxillary protraction and the long-term stability.对于上颌骨发育不足并处于生长发育高峰期的骨性Ⅲ类错■，临床常采用上颌前方牵引进行矫治。本文从上颌前方牵引的适应证、矫治时机以及上颌前方牵引治疗中需考虑的问题等几个方面，讨论上颌前方牵引的疗效及其长期稳定性，以期为临床提供参考。. |
