Objective: To evaluate the effective measures for treating the impacted anterior maxillary teeth with fixed orthodontic technique and prevention of postoperative complications.
目的：探讨上颌前牙埋伏阻生固定正畸矫治的有效方法及相关并发症的预防措施。
It is the most commonly that supernumerary teeth are impacted in maxillary anterior region with considerable clinical significance.
上颌前部骨埋伏多生牙是多生牙中最常见的一类，临床意义也较大。
It's displayed in orthopantomography that 3 teeth impacted in maxillary sinus and 2 cases of maxillary molars were buccolingually and horizontally impacted.
曲面体层片显示3例位于上颌窦内，2例上颌后牙颊舌向水平埋伏阻生。
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