Difficult but not painful teeth, may be periodontal tissue-related diseases, dental tissue-related diseases and other diseases, need a clear diagnosis, symptomatic treatment. 1. Periodontal tissue-related diseases: some oral presence of calculus, gingival inflammation of patients, can lead to bad taste, rough teeth and other discomfort, most do not have obvious pain, generally cleaning on the gums (scaling) can be cured. 2. Dental tissue-related diseases: early adjacent surface caries, filling overhang, etc., will lead to food congestion, gingival soreness and swelling and other uncomfortable symptoms, the former need to remove the carious tissue after filling treatment, the latter need to remove the original filling and then re-filling. 3. Other related diseases: some inflammation of maxillary sinus can spread to the root of maxillary teeth, the symptoms are mild, no obvious pain, slight swelling and discomfort. It is recommended to be budesonide nasal spray local drug treatment plus oral cephalosporin antibiotic systemic therapy. There are many causes of dental discomfort, it is recommended to go to the regular hospital stomatology consultation, by the physician after examination to clarify the diagnosis and treatment of the cause. Drugs should be used under the guidance of a physician.