@article{ref1,
title="Does sleep bruxism contribute to headache-related disability after mild traumatic brain injury? A case-control study",
journal="Journal of oral and facial pain and headache",
year="2017",
author="Suzuki, Yoshitaka and Arbour, Caroline and Khoury, Samar and Giguère, Jean-François and Denis, Ronald and de Beaumont, Louis and Lavigne, Gilles J.",
volume="31",
number="4",
pages="306-312",
abstract="AIMS: To explore whether traumatic brain injury (TBI) patients have a higher prevalence of sleep bruxism (SB) and a higher level of orofacial muscle activity than healthy controls and whether orofacial muscle activity in the context of mild TBI (mTBI) increases the risk for headache disability. <br><br>METHODS: Sleep laboratory recordings of 24 mTBI patients (15 males, 9 females; mean age ± standard deviation [SD]: 38 ± 11 years) and 20 healthy controls (8 males, 12 females; 31 ± 9 years) were analyzed. The primary variables included degree of headache disability, rhythmic masticatory muscle activity (RMMA) index (as a biomarker of SB), and masseter and mentalis muscle activity during quiet sleep periods. <br><br>RESULTS: A significantly higher prevalence of moderate to severe headache disability was observed in mTBI patients than in controls (50% vs 5%; P =.001). Although 50% and 25% of mTBI patients had a respective RMMA index of ≥ 2 episodes/hour and ≥ 4 episodes/hour, they did not present more evidence of SB than controls. No between-group differences were found in the amplitude of RMMA or muscle tone. Logistic regression analyses suggested that while mTBI is a strong predictor of moderate to severe headache disability, RMMA frequency is a modest but significant mediator of moderate to severe headache disability in both groups (odds ratios = 21 and 2, respectively). <br><br>CONCLUSION: Clinicians caring for mTBI patients with poorly controlled headaches should screen for SB, as it may contribute to their condition.<p /> <p>Language: en</p>",
language="en",
issn="2333-0384",
doi="10.11607/ofph.1878",
url="http://dx.doi.org/10.11607/ofph.1878"
}