Whether or not a wobbly tooth needs to be removed for tooth replacement is determined by the eruption of permanent teeth. Under normal circumstances, from the age of about six years old began to change teeth, the new out of the eruption before the root of the milk teeth gradually resorption, appear milk teeth loose, in chewing food, loose milk teeth will feel uncomfortable. Need to check the eruption of the teeth, if the permanent teeth have erupted, it is necessary to go to the local anesthesia in time to pull out the milk teeth, if not for a long time to pull out the milk teeth, it will affect the position of the permanent teeth eruption, appearing teeth misalignment, uneven, if the milk teeth loose, but the permanent teeth have not erupted can be temporarily retained the movable milk teeth to occupy the existing position, can be brought to the natural fall off, to avoid the position of the permanent teeth to avoid eruption of the position of the lack of. Whether the movable milk teeth need to be extracted or not needs timely medical examination, under the guidance of the doctor for examination and treatment, to avoid adverse effects.