Trismus

Providers

Trismus, or difficulty opening widely, can be a side effect of surgery or radiation therapy used in the treatment of head and neck cancer. Use strategies like exercises as described below to prevent this. People experiencing this difficulty in opening their mouths widely have greater difficulty with brushing and flossing or obtaining care at the dentist. This may also limit food choices. Individuals may perform exercises at home.

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Exercises to prevent trismus:

  • Home recommendations: Five stretches, up to five times per day, for 30 days

    • Finger stretches- place a thumb on upper teeth and index finger on lower teeth and gently stretch

    • Stacking tongue depressors: stack four tongue depressors between back teeth. Try to insert one more in the middle to provide a stretch

  • Companies with physical therapy devices- require a prescription from a dentist or physician

For more information about trismus and oral health, see these resources:

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