Temporomandibular disorder in chronic migraine

Autor: N. V. Latysheva, E. G. Filatova, A. S. Platonova
Jazyk: ruština
Rok vydání: 2017
Předmět:
Zdroj: Alʹmanah Kliničeskoj Mediciny, Vol 45, Iss 6, Pp 495-501 (2017)
Druh dokumentu: article
ISSN: 2072-0505
2587-9294
DOI: 10.18786/2072-0505-2017-45-6-495-501
Popis: Rationale: For many years, temporomandibular disorder (TMD) has been studied primarily by dentists and maxillofacial surgeons. However, new data is emerging that TMD is comorbid with various types of headache; however this association has not been studied in detail. Aim: To analyze TMD prevalence and clinical structure in patients with migraine. Materials and methods: We assessed 84 patients with chronic migraine (CM) and 42 patients with episodic migraine (EM). TMD was diagnosed according to the Diagnostic Criteria for Temporomandibular Disorders: Clinical Protocol and Assessment Instruments 2014. We also performed subgroup analysis for low-frequency EM (less than 4 headache days per month, LFEM) vs. high-frequency EM and CM (over 10 headache days per month, HFEM + CM). Results: In both groups, myofascial pain was the most prevalent form of TMD. The prevalence of TMD was higher in CM as compared to EM (52.4% vs. 28.6%, correspondingly, р = 0.02). Even more evident differences were observed between LFEM and HFEM + CM (18.2% vs. 51.6%, correspondingly, р < 0.009). The difference was significant for painrelated TMD only. The prevalence of bruxism was comparable across LFEM and HFEM + CM (18% vs. 30.5%, correspondingly, р = 0.3) and significantly lower than TMD prevalence in HFEM + CM (30.5% vs. 51.6%, correspondingly, p = 0.005). The anxiety level in patients with and without TMD was also comparable (8.1 ± 4.1 vs. 8.3 ± 4.7, correspondingly, р = 0.8). Conclusion: CM patients have a high prevalence of pain-related TMD (52.4%). The prevalence of TMD in LFEM is comparable to that in the general population. The presence of bruxism or anxiety cannot be associated with a high TMD prevalence in our patients. In CM, pain in the masticatory muscles may be caused by anti-nociceptive dysfunction, mirroring central sensitization and disrupted descending modulation of pain.
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