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当病人下颌后牙拔除后,相对的上颌牙和牙槽骨过度地长长,甚至接触下颌无牙区的牙槽嵴,给修复造成困难。少数病人能够通过调(牙合)得到间隙,或将伸长的牙作根管治疗后,磨去部分牙冠作冠修复,或者拔除这些牙,获得足够间隙。除上述方法外,尚可采用上颌后牙区截骨术,用这种手术方法,可使牙齿在保持活力的情况下,重新排列在正常的位置上。诊断及治疗设计: 应由外科及修复科医生共同作出诊断,拟出治疗方案。病员的临床资料应包括头测量的全景的和根尖周的X线照片,两副研究模型,一张相片,以及牙周及修复前的检
When the patient's mandibular posterior teeth were removed, the relative maxillary teeth and alveolar bone were excessively long, even touching the alveolar ridge of the mandible with no tooth area, which made the repair difficult. A small number of patients can get the gap by adjusting the occlusion, or after the root canal treatment of the elongated tooth, grinding some of the crowns for crown restoration, or removing these teeth to obtain sufficient clearance. In addition to the above method, the maxillary posterior teeth osteotomy can still be used, with this method of surgery, the teeth can maintain the vitality of the case, rearranged in the normal position. Diagnosis and treatment design: Surgeons and rehabilitative physicians should make a diagnosis and propose a treatment plan. The patient's clinical data should include panoramic and apical radiographs of the head measurements, two study models, a photograph, and periodontal and pre-repair examinations