长期以来把吐舌活动或吐舌习惯(往往伴随异常吞咽习惯)视为异常舌功能。随,由于这种舌的异常功能常常和前牙开(牙合)相伴因而被推测为前牙开(牙合)的主要原因。尤其是在找不到其他开(牙合)的原因时,就归罪于吐舌习惯。基于这种指导思想,发展了一系列训练舌功能的疗法,以试图消除被推测为前牙开(牙合)的主要原因,并认 For a long time, tongue activity or tongue habits (often accompanied by abnormal swallowing habits) are considered abnormal tongue functions. With the abnormal function of the tongue often accompanied by the anterior occlusal occlusion is presumed to be the main reason for anterior occlusal occlusion. Especially in the absence of other open (occlusion) reasons, it blames the tongue habit. Based on this guiding principle, a series of therapies to train the function of the tongue have been developed in an attempt to eliminate the main reason for presumed anterior occlusion and to recognize