ArticleActa neurologica Belgica2026
Ultrasonographic masseter and temporalis thickness in tension-type headache.
Article in Acta neurologica Belgica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo evaluate masseter and temporalis muscle thickness in patients with tension-type headache (TTH) using ultrasonography and to examine the associations between masticatory muscle morphology, headache severity, and temporomandibular disorder (TMD) severity.
methodsIn this cross-sectional study, 54 patients with primary TTH and 40 age-matched healthy controls underwent clinical assessment, including headache and jaw pain severity (VAS-H, VAS-J) and TMD evaluation using the Fonseca Anamnestic Index (FAI). Ultrasonographic measurements of masseter and temporalis muscle thickness were obtained at rest and during maximal contraction.
resultsPatients with primary TTH exhibited significantly higher VAS-H, VAS-J, and FAI scores than controls (all p < 0.001). Masseter and temporalis muscle thicknesses were greater in the patient group at rest and contraction (p < 0.05). FAI scores showed significant positive correlations with masseter and temporalis thickness measurements (r = 0.247-0.378, p ≤ 0.016). Among all ultrasonographic parameters, VAS-H was significantly associated only with MMT-C (r = 0.206, p = 0.047).
conclusionPatients with primary TTH exhibited greater masseter and temporalis muscle thickness compared with healthy controls. The relationship between headache intensity and MMT-C suggests a possible association between masticatory muscle involvement and headache severity.
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