Teeth do not hurt but chewing on the pain may be related to food impaction, may also be the emergence of periodontitis, dental caries and other diseases, you can follow the doctor’s instructions to use metronidazole and other drugs treatment. 1. Food impaction, if food impaction occurs, the pressure rises during chewing, pain symptoms may occur, generally do not need to treat, need to remove the impaction food in time, can effectively relieve pain. 2. Periodontitis, if there is periodontitis, the teeth around the inflammation stimulation, chewing process stimulation increased, there may be pain symptoms, the main treatment is to remove tartar and plaque through scaling, if necessary, under the guidance of the doctor using amoxicillin, metronidazole and other medications to remove the inflammation. 3. Dental caries, if caries, caries have more residual material exists, chewing process of the pulp cavity pressure increases may appear this symptom, can be filled treatment or root canal treatment. Normally, it is best not to often excessive chewing, need to maintain good habits.