Electromyographic activity of human masticatory muscles in normal young people. Statistical evaluation of reference values for clinical applications

Journal of Oral Rehabilitation - Tập 20 Số 3 - Trang 271-280 - 1993
Virgilio F. Ferrario1, Chiarella Sforza2, Alessandro Miani2, Antonio D’Addona3, E. BARBINI2
1Laboratorio di Anatomia Funzionale dell' Apparato Stomatognatico, Facoltà di Medicina e Chirurgia, Università degli Studi, Milano, Italy.
2Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico, Istituto di Anatomia Umana Normale, Facoltá di Medicina e Chirurgia, Universitá degli Studi-Milano, Italy
3Clinica Odontoiatrica, Facoltà di Medicina e Chirurgia, Università La Sapienza, Roma, Italy

Tóm tắt

Electromyographic activity of anterior temporal and masseter muscles was measured in 92 young healthy men and women with sound dentitions during rest position, contact in centric occlusion and clench. Male and female mean potentials were similar except in clench, where males had higher electromyographic levels. Mean pooled electromyographic potentials were 1.9 μV (TA) and 1.4 μV (MM) during rest position, 6.5 μV (TA) and 2.8μV (MM) during contact in centric occlusion. Mean maximum voluntary clench potentials were 181.9μV (TA) and 216.2 μV (MM) in men, 161.7 μV (TA) and 156.8 μV (MM) in women. Examined muscles were more asymmetric at low electromyographic activity (rest and centric occlusion) with the temporal muscle less asymmetrical than the masseter. In females temporal muscle activity tended to dominate at every contraction level, while in males masseter activity was stronger in clench, and temporal activity in centric occlusion and in rest position.

Từ khóa


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Thông tin xuất bản

Journal of Oral Rehabilitation

Tập 20 Số 3

271-280

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