为了更好地保护下颌第二磨牙 ,减少其远中、颊侧的骨损失 ,所以对下颌低位水平阻生智齿 (以下简称阻生齿 )的拔除方法进行改进。自１９９８年以来 ,应用远中沟劈冠法手术 ,取得了较好的效果。现报道如下。１一般资料本组３２例 ,男１９例。女１３例 ,年龄最大３５岁 ,最小２０ In order to better protect the mandibular second molars, and reduce the distal, buccal bone loss, so the level of lower mandibular impacted wisdom teeth (hereinafter referred to as impacted teeth) removal method is improved. Since 1998, the application of far-trough split crown surgery, and achieved good results. Report as follows now. 1 General Information The group of 32 patients, 19 males. Female 13 cases, the oldest 35 years old, the smallest 20