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本组病人共16例,其中切缘唇舌向移位距离超过5mm者6例;牙间隙不足平均每牙大于mm者6例;牙颌畸形并发牙周病者2例;前牙扭转角度大于40度者2例。在治疗过程中除按一般方法外,还根据不同情况,分别采取术前牙周治疗、根管治疗、分期片切牙冠颈面。待牙周情况好转(牙龈无红肿,牙周袋无溢脓邻牙松动小于Ⅱ°)、x线片示牙槽骨吸收不超过牙根1/3、根管充填后观察两周无不良反应后再行手术。许某,女,20岁,主因上颌前牙不齐且渐进性移
The group of patients a total of 16 cases, including the edge of the lip to the shift more than 5mm in 6 cases; less than the average tooth gap per tooth more than mm in 6 cases; dento-mandibular deformity complicated by periodontal disease in 2 cases; anterior torso angle greater than 40 Degree in 2 cases. In addition to the general treatment in the process, but also according to different circumstances, were taken before periodontal treatment, root canal treatment, staged coronal cervical face. Periodontal improvement (gingival swelling, adjacent pus of pus without pouch loosening less than Ⅱ °), x-ray showed no more than 1/3 of alveolar bone absorption, 2 weeks after filling the root canal and no adverse reactions Re-operation. Xu, female, 20 years old, mainly due to the maxillary anterior teeth missing and progressive shift