• Mariana Dimova-Gabrovska Medical University - Sofia
  • Desislava Dimitrova Dental Clinic ”Edinstvo” – Sofia
  • Desislava Konstantinova Medical University - Varna
  • Ivan Gerdzhikov Medical University - Sofia
Keywords: electromyography, musculus masseter, craniomandibular disorders, bruxism


The chewing muscles are at the base of the stomatognatic system. Due to their ability to perform contractions, it is possible to bring the lower jaw in motion and to chew. During this process there is an electronic potential of each of the muscles which can be investigated by electromyography. Knowing the values and parameters of this study about musculus masseter, as a major chewing muscle, it would be an advantage in establishing the function of the chewing system and the diagnosis of various diseases. The purpose of this review is to analyze and summarize the scientific data on electromyography (EMG) of m. masseter in norm and craniomandibular disfunctions. An electronic search was made in the following databases PubMed, Google, Lilac from June to July 2017, according to keywords. From the published literary sources, the titles and information which do not correspond to the topic of this review are excluded, which resulted in a final selection of 30 scientific papers. The analysis of the data shows the possibilities of applying electromyography in the study of m. masseter in both conditions – norm and pathology. There are different techniques and conditions in performing this study. Some of the authors offer the use of a surface EMG, examining the muscle in static states such as maximum intercuspation, incisal occlusion, muscle contraction at 50% of maximum clenching force, etc. Other sources suggest an investigation of the m. masseter during dynamic conditions such as chewing, laterotrusion, protusion / retrusion, etc. In the cases which analyze the muscle activity during chewing, there is a lack of consensus in regard to the used food for the purpose of the study. Also of interest are the studies with needle EMG, due to which a difference in the activity of the superficial and deep parts of a normal musculus masseter is proven. There is information about using a portable EMG during sleep in a patient-friendly environment, which is particularly useful for diagnosing nocturnal bruxism and bruxomania. Despite the variety of techniques, EMG is seen as one of the most precise methods in the study of chewing muscles and the diagnosis of craniomandibular disorders.


Chowdhury RH, Reaz MBI, Ali MABM, Bakar AAA, Chellappan K, Chang TG. SurfaceElectromyography Signal Processing and Classification Techniques. Sensors (Basel, Switzerland). 2013;13(9):12431-12466.

Visser A, McCarrolR.S, Oosting J. Masticatory electromyographic activity in healthy young adults and myogenous craniomandibular disorder patients. J Oral Rehabil 1994; 21: 67-76.

Gallo L.M, Sallis Gross S.S, Palla S. Nocturnal msseter EMG activity of healthy subjects in natural environment. J Dent Res. 1999;78(8): 1436-1444.

Bakke M, Tuxen A, Vilmann P, Jensen Br, Vilmann A, Toft M. Ultrasound image of human masseter muscle related to bite force, electromyography, facial morphology, and occlusal factors. Scand J Dent Res 1992; 100: 164-171.

Manns A, Miralles R, Palazzi C. EMG, bite force and elongation of the masseter muscle under isometric voluntary contractions and variations of vertical dimension. J Prosthet Dent 1979; 42(6): 674-682.

Frame J, Rothwell P.S, Duxbury A.J. The standartization of the masseter muscle in man. Archs oral Biol 1973; 18:1419-1423;

Nascimento GKBO, Cunha DA, Lima LM, MoraesKJR, Pernambuco LA, RëgisRMFL, Silva H. Surface electromyography of the masseter muscle during chewing: a systematic review. Rev. CEFAC 2012; 14(4): 725-731.

Peyron MA, Lassauzay C, WodaA. Effects of increased hardness on jaw movement and muscle activity during chewing of visco-elastic model foods. Exp Brain Res. 2002 Jan; 142 (1):41-51.

Diaz-Tay J, Jayasinghe N, Lucas PW, McCallum JC, Jones JT. Association between surface electromyography of human jaw closing muscle and quantified food breakdown. Arch Oral Biol. 1991; 36 (12) :893-898.

Kimoto K, Fushima K, Tamaki K, Toyoda M, Sato S, Uchimura N. Asymmetry of masticatory muscle activity during the closing phase of mastication. Cranio. 2000 Oct; 18 (4):257-263.

Rahal A, Pierotti S. Eletromiografia e cefalometria na Fonoaudiologia. In: Ferreira LP, Befi-Lopes DM, Limongi SCO (Org.) Tratado de Fonoaudiologia. São Paulo: Roca; 2004. p. 237-253.

Ferrario VF, Sforza C. Coordinated electromyographic activity of the human masseter and temporalis anterior muscles during mastication. Eur J Oral Sci 1996; 104:511-517.

BlanksmaN.G, EijdenT.M.G.J. Electromyographic Heterogeneity in the human temporalis and masseter muscles during static biting, open/close excursios, and chewing. J Dent Res 1995; 74(6): 1318-1327.

EijdenT.M.G.J, BlanksmaN.G, Brugman P. Amplitude and timing of EMG activity in the human masseter muscle during selected motor tasks. J Dent Res 1993; 72(3): 599-606.

Dahlström L. Electromyographic studies of craniomandibular disorders: a review of literature. J Oral Rehabil 1989; 16: 1-22.

PerryH.T. Muscularchangesassociatedwith temporomandibular jointdysfunction. J Am DentAssoc1957; 54: 644.

Kotani H, Kawazoe Y, Hamada T,Yamado S. Quantitative electromyographic diagnosis of myofascial pain-dysfunction syndrome. J of Prosthet Dent1980; 43(4): 450-456.

RedingGR, Zepelin H, Robinson J.E, ZimmermanSO,Smith VH. Nocturnalteethgrinding: all-nightpsychophysiologicstudies. J Dent Res 1968; 47(5): 786-797.

Fusch P. The muscular activity of the chewing apparatus during night sleep. J Oral Rehabil 1975; 2: 35-48.

Clark G.T, BeemsterboerP.L,RughJ.D. Nocturnalmassetermuscleactivityandthesymptoms of masticatory dysfunction. JOral Rehabil1981a; 8: 279-286.

Kroon G.W, Naeije M. Electromyographic evidence of local muscle fatigue in a subgroup of patients with myogenous craniomandibulr disorders. Archs oral Biol 1992; 37(3): 215-218.

Bessette R, Bishop B, Mohl N. Duration of masseteric silent period in patients with TMJ syndrome. J Appl Physiol 1971; 30: 864-869.

Manfredini D, Cocilovo F, Favero G, Ferronato G, Tonello S, Guarda-Nardini L. Surface electromyography of jaw muscles and kinesiographic recordings: diagnostic accuracy for myofacial pain. J Oral Rehabil 2011; 38(11): 791-799.

Widmalm S. The silent period in the masseter muscle of patients with TMJ dysfunction. Acta Odontol Scand1976; 34(1): 43-52.

Cooper B, Cooper D, Lucente F. Electromyography of masticatory muscles in craniomandibular disorders. Laryngo-scope 1991; 101(2): 150-157.

Bakke M, Michler L. Temporalis and masseter muscle activity in patients with anterior open bite and craniomandibular disorders. Scand J Dent Res 1991; 99(3): 219-228.

How to Cite
Dimova-Gabrovska, M., Dimitrova, D., Konstantinova, D., & Gerdzhikov, I. (2017). ELECTROMYOGRAPHY OF THE MASSETER MUSCLE - A SYSTEMATIC REVIEW. Knowledge International Journal, 19(4), 1417 - 1421. Retrieved from https://ikm.mk/ojs/index.php/KIJ/article/view/3639