Can avoiding wide mouth opening relieve jaw pain?

Mar 05, 2025 Source: Cainiu Health
Dr. Liu Chao
Introduction
In general, whether avoiding wide mouth opening can relieve jaw pain depends on the specific cause of the jaw pain. If the pain is caused by temporomandibular joint disorder or muscle tension, avoiding wide mouth opening may usually help alleviate the symptoms. However, if the pain is caused by pericoronitis of a wisdom tooth, this measure will not provide relief. If symptoms are severe, it is recommended to seek timely medical attention and follow the doctor's instructions for treatment.

Generally speaking, whether avoiding wide mouth opening can alleviate jaw pain depends on the specific cause of the jaw pain. If the jaw pain is caused by temporomandibular joint (TMJ) disorders or muscle tension, avoiding wide mouth opening usually can help relieve the pain. However, if the pain is caused by pericoronitis of a wisdom tooth, it cannot be effectively alleviated this way. If symptoms are severe, timely medical consultation is recommended, and treatment should follow medical advice. Detailed analysis is as follows:

If the jaw pain is caused by temporomandibular joint disorders or muscle tension, avoiding wide mouth opening can reduce the burden on the TMJ and related muscles, thereby helping to alleviate the pain. For example, when chewing hard foods or yawning widely, try to control the mouth's opening range to avoid excessive movement of the temporomandibular joint, which can help relieve the pain.

However, if inflammation occurs due to damage and irritation of the soft tissues around the crown of a wisdom tooth, resulting in local mucosal redness, swelling, pain, and pus discharge, the inflammation may spread to the soft tissues and the masticatory muscles of the jaw and face, leading to trismus (inability to open the mouth) and jaw pain. In this case, simply avoiding wide mouth opening cannot effectively relieve the pain. Anti-inflammatory medication should be taken as directed by a physician, and removal of the wisdom tooth may be necessary in some cases.

It is recommended to maintain good oral hygiene habits and avoid excessive use of the temporomandibular joint in daily life, which can help prevent and alleviate jaw pain.