A nociceptive trigeminal inhibition device can be considered as a method of determining if jaw-clenching is a significant contributing factor to ongoing migraine.
According to a placebo-controlled, cross-over, single-blinded study published in BMC Neurology,
the improvement in headache impact test (HIT-6) scores induced by nociceptive trigeminal inhibition (NTI) device indicated that refractory chronic migraine sufferers might have intense nocturnal jaw clenching as a contributory factor to their headache linked disability.
Researchers aimed to determine migraine prevention effectiveness of NTI oral device (a dental splint designed to decrease the intensity of nocturnal jaw clenching) vs. placebo in 30 people suffering from chronic migraine. Each participant was treated with either an NTI device or a placebo device. An alteration in the HIT-6 score was the endpoint of the study.
Table 1 shows the percentage of migraine patients utilizing NTI splint that exhibited at least one-category improvement and two-category improvement in their HIT-6 scores.
Thus, an NTI device appears to be beneficial to assess if jaw-clenching is a contributing factor to ongoing migraine.
BMC Neurology
Adjunctive treatment of chronic migraine using an oral dental device: overview and results of a randomized placebo-controlled crossover study
Andrew M Blumenfeld et al.
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