Cavities in the upper teeth at the same time have the feeling of pain in the lower teeth, there are generally two clinical situations.1, acute pulpitis, the typical performance is severe pain, night pain, radiating pain and pain can not be localized, pain can not be localized means that patients with acute pulpitis sometimes can not distinguish between the pain in the upper teeth, or the pain in the lower teeth, need to be professional stomatologist to apply the professional methods for the identification of the lower teeth. 2, lower teeth There may also be a certain problem, but it is not necessarily a cavity, it may be the lower jaw wisdom teeth pericoronitis or the lower jaw adjacent caries and other problems that are not easy to be detected. Simply put, in addition to the upper teeth have problems, the lower teeth also have problems, so clinically, once this situation occurs, it is recommended to go to a professional stomatology department by the dentist to carry out differential diagnosis of the disease.