Hidden pain after filling can usually be gradually recovered in 7-10 days. When filling a tooth, especially in the process of removing decay and preparing cavities, the high-speed drill bit quickly cuts the dentin and enamel will produce heat, and this heat can further stimulate the dentin tubules to cause soreness and pain, and the symptoms will be gradually relieved in about 7-10 days. However, if the filling has been vaguely painful for 10 days, it is necessary to consider the abnormal conditions, such as pulp congestion, gingivitis, etc.. In addition, in the process of filling the teeth if the filling material is taken on the nerve stimulation, or filling improper operation caused by the nerve inflammation, can also lead to the patient to appear 10 days after the filling still hidden pain situation. This kind of situation generally need to consult the doctor in time for examination to clarify the cause before targeted treatment, the occurrence of pulpitis need to carry out root canal treatment.