When children change their teeth and their incisors don’t grow for six months, there may be cases of blocked teeth or missing permanent teeth. Surgical treatment or restorative treatment can be taken to deal with it. 1. Dental obstruction: when the teeth have been lost for too long and the new permanent teeth have not erupted, the gums will be thickened and enlarged during repeated use, which will affect the growth and eruption of the new permanent teeth. The phenomenon of children’s incisors not growing for half a year can occur. It is recommended that dental radiographs be taken to confirm whether the overgrowth of the gums is preventing the eruption of the permanent teeth. If so, it can be solved by opening the window for eruption under local anesthesia. 2. Prosthetic treatment: when the child is six to eleven years old and starts to change teeth, and the teeth do not come out for a long time after changing teeth, it is necessary to consider the absence of permanent teeth, which is manifested in the absence of permanent teeth under the dental radiographs, resulting in the absence of permanent teeth for half a year after changing the teeth and incisors of the child. Restorative treatment can be carried out. Children change incisors half a year does not grow, there may be other reasons, it is recommended to consult a doctor in a timely manner to identify the cause, and active treatment.