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上颌侧切牙先天缺失造成的缺隙,可通过正畸矫治以尖牙代替侧切牙,或保留缺隙以备将来做修复。尖牙保持在正常位置,可发挥尖牙保护(牙合)的作用。尖牙移向近中,缺隙逐渐消失,尖牙保护(牙合)的作用即不存在。在选择治疗方法时,必须考虑(1)移动尖牙消灭缺隙,从而改变了(牙合)型,这会影响牙周将来的健康吗?(2)侧切牙修复后对牙列牙周状态的影响严重吗? 本研究即企图通过对两组病人(一组用正畸矫治法消灭缺隙,另一组采用修复)的
Maxillary incisors caused by birth defects in the gap, you can orthodontic treatment of canines instead of lateral incisors, or leave gaps for future repair. Fangs to maintain the normal position, can play the role of canine protection (occlusion). Canines move to near, the gap disappears, canine protection (occlusion) does not exist. In the choice of treatment, we must consider (1) the canine to eliminate the gap, which changed the occlusion type, which will affect the future periodontal health it? (2) lateral incisor dentition periodontal state Of the serious? This study is trying to pass two groups of patients (a group with the orthodontic treatment to eliminate the gap, the other group with repair)