多数牙先天缺失或牙齿早失的年青病人常常可以通过正畸关闭间隙的方法满意地获得解决,事实上这种方法已成为对先天缺失前磨牙或过早缺失第一磨牙的常规治疗方法,在缺失上颌侧切牙的病例中(单侧或双侧缺失),Juverson指出可移动尖牙到侧切牙的位置上,在大小形态上作适当修改,同时对第一前磨牙也作类似的修改,以代替尖牙的功能,可以取得良好的效果。但是很多病例不是多数牙缺失,就是不对称的牙缺失,处理这种病例可以不采取单 Most young patients with congenital absence or premature loss of teeth can often be satisfactorily solved by means of orthodontic closure of the gap. In fact, this approach has become a routine treatment for premolar or premature first molar loss In the absence of the maxillary lateral incisor (unilateral or bilateral deletion), Juverson pointed out that the canine moves to the position of the lateral incisor with appropriate modifications in size and shape, with similar modifications to the first premolar to Instead of canine function, you can achieve good results. However, many cases are not the majority of missing teeth, that is, asymmetric loss of teeth, the treatment of such cases can not take a single