The loosening of the teeth means that the degree of loosening of the teeth exceeds the normal range of physiology.Tooth loosening can be divided into acute and chronic, sometimes accompanied by toothache and discomfort. The main influence on human beings is weakness or discomfort when chewing food.

     The degree of tooth loosening is different, and it can be divided into three degrees in clinical.

     I degree:The dynamic degree of the buccal and lingual direction (inside and outside) is within 1mm, and the other direction has no dynamic degree.

     II degree:There are two kinds of teeth loosening. One is the dynamic degree of the buccal tongue between 1~2mm, the second is the two directions of the teeth with the direction of the tongue and the direction of the near and far middle.

     III degree :It also has two cases, one is the dynamic degree of buccal and lingual direction is over 2mm, the other is the motion of three directions of teeth in buccal tongue direction, near middle direction and vertical direction.

     From the first degree to the third degree, the degree of tooth loosening is more and more serious. It also has a greater impact on the life of patients. In general, the possibility of tooth loss or removal is greater.