Taking metronidazole for toothache kills anaerobic bacteria in the mouth and also prevents and treats anaerobic infections. Metronidazole can effectively kill anaerobic bacteria, such as due to periodontitis, periodontal abscess, apical periodontitis caused by toothache, you can use metronidazole buccal tablets, metronidazole oral paste tablets and other treatment. 1. Metronidazole can treat oral diseases caused by anaerobic infections, and can eliminate anaerobic bacteria in the mouth and prevent anaerobic infections. In the presence of periodontitis, periodontal abscess, apical periodontitis, or when the abscess is incised or rinsed, the use of metronidazole can effectively kill sensitive bacteria. For chronic periodontitis, metronidazole and stomatitis granules can also be used in conjunction with treatment. 2. Metronidazole buccal tablets and metronidazole oral paste tablets are commonly used in the treatment of oral anaerobic bacteria. The use of metronidazole can be seen after the use of dry mouth, mucosal irritation and other allergic reactions, long-term use can cause taste changes, can disappear after stopping the drug. Patients with toothache should seek medical attention and be treated according to the cause. If you need to use drugs, should be used under the guidance of a doctor.