Is taking metronidazole for a toothache appropriate?

Taking metronidazole for toothache is appropriate. This is because most toothaches are caused by bacterial infections, and a significant portion of oral infections are due to anaerobic bacteria. As a first-line antimicrobial agent against anaerobic bacteria, metronidazole is commonly used in treating oral infections and has a particularly effective inhibitory action against bacteria in the mouth, thus providing good anti-inflammatory and pain-relieving effects. However, taking metronidazole alone may only temporarily relieve the pain. To achieve a definitive cure for toothache, it is necessary to visit a professional dental department to determine the exact cause of the pain and receive appropriate treatments such as caries removal, periodontal irrigation, or tooth extraction. If symptoms of toothache occur, it is recommended to seek medical attention promptly to avoid delaying treatment.