What causes jaw pain?

Jaw problems are caused by overuse of jaw muscles, misalignment of teeth, teeth grinding or clenching, as well as poor posture, and stress. While grinding and clenching your teeth can be primary factors, there can also be many secondary factors related to jaw pain, including jaw malocclusion (when your upper and lower teeth don’t meet properly), poor dental hygiene, stressful lifestyle, poor posture, jaw injury or trauma, aging bones and muscles, and bruxism (grinding of the teeth). Jaw pain that lasts only momentarily after eating or opening the mouth wide for instance may indicate a temporary problem, such as TMD that has gone into spasm or locked jaw position termed “trismus”.

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