Can holding ice water in the mouth relieve a toothache?

Holding ice water in the mouth can temporarily relieve toothache, but the effectiveness varies depending on the cause of the pain. Generally, for toothaches caused by dental caries or pulpitis, holding ice water may help alleviate pain through mechanisms such as vasoconstriction of the periodontal mucosal blood vessels, reduction of local inflammation, inhibition of nerve conduction, and decreased pressure within the pulp chamber. This is because the cold water lowers the temperature inside the mouth, thereby reducing swelling and pain in the tissues surrounding the tooth. However, for toothaches caused by periodontitis or gingivitis, holding ice water may irritate the gums and surrounding tissues, potentially worsening the pain. Furthermore, holding ice water is only a temporary pain-relief measure and cannot replace professional dental treatment. If the toothache persists or worsens, it is recommended to consult a dentist promptly to determine an appropriate treatment plan.