The root cause of a toothache is treated according to the cause of the toothache, which may require different treatments such as fillings, root canal treatment, periodontal treatment, and extraction of the affected tooth. 1. Fillings: Generally, the cause of toothache may be dental caries leading to deep caries, etc., and it is necessary to go to the hospital to clean up the decayed tooth tissues and then carry out filling treatment. 2. Root canal treatment: In addition, when the tooth has pulpitis, apical periodontitis, etc., it may also lead to toothache, and it is necessary to go to the dental clinic to carry out root canal treatment on the tooth in order to cure the problem of toothache. 3. Periodontal treatment: Periodontitis, periodontal abscess and other symptoms may also lead to toothache, you need to scaling the way to completely clean the calculus and other irritating factors, and improve the periodontal treatment in order to cure the toothache. 4. Extraction of the affected tooth: For toothache caused by residual roots, blocked wisdom teeth and other factors, it is best to remove the diseased tooth after a timely radiographic examination in order to completely solve the problem of toothache. There are many ways to cure toothache, you need to take different treatments according to the disease, and you need to pay attention to maintain good oral hygiene.