Jaw clenching in your sleep can lead to migraine-related disability

Jaw clenching in your sleep can lead to migraine-related disability Clenching your jaw in your sleep could lead to headache-related disability among those with chronic migraine.

Published in BMC Neurology, the study found that nocturnal jaw clenching should be considered as both a potential perpetuating and confounding co-factor of chronic migraine.

Although the underlying pathology of migraine is currently unknown, it is thought to involve overactivity in certain nerves.

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Previous research suggests habitual nocturnal jaw clenching as a potential migraine trigger. This is especially relevant among those who have headaches when waking up.

Researchers carried out a blind study among 25 chronic migraine sufferers who attended a headache centre.

After being referred to a dental practice, participants were treated using both a nociceptive trigeminal inhibition (NTI) oral device and a placebo.

The NTI was developed to minimise clenching intensity. An intraoral mouthpiece, it was approved by the FDA in 2001 for the treatment of medically-diagnosed migraine pain.

Improved symptoms

Before the study commenced, patients completed a Headache Impact Test (HIT-6) questionnaire.

After a randomised allocation of either 30 days of NTI splint use or placebo splint use, patients completed another questionnaire and switched to the other device.

  • 68% of patients using the NTI as measured by sequential HIT-6 scores had at least a one-category improvement compared with 12% when using a placebo device
  • 36% of patients using the NTI device reported a two-category improvement in their HIT-6 score, compared with 0% when using placebo
  • In addition, no adverse events were reported by any patients.

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