１９９４年１０月至１９９６年６月，我们采用增隙法拔除下颌第三磨牙阻生齿１６８颗，其中近中阻生１２７颗、水平阻生６颗、颊向阻生１２颗、舌向阻生８颗、垂直阻生１９颗。现报告如下。操作方法：近中阻生及水平阻生的牙齿常规先劈冠，消除冠部阻力后，再用增隙法。颊... From October 1994 to June 1996, we removed 168 impacted teeth of the mandibular third molars by gap-increasing method, of which 127 were mesially impacted, 6 impacted horizontally, 12 impacted cheekly, Health 8, vertical impacted 19. The report is as follows. Method of operation: the level of impeding and impaction of the teeth impacted conventional first split crown, eliminate the crown resistance, and then increase the gap method. cheek...