Manual Therapy, Posturology & Rehabilitation Journal
Manual Therapy, Posturology & Rehabilitation Journal
Research Article

Standardized mastication increases the coordination in masticatory activity in women with chronic temporomandibular joint disorders: a case control study.

Carlos Eduardo Fassicollo, Maylli Daiani Graciosa, Daiane Lazzeri de Medeiros, Licerry Palma Soares, Luis Mochizuki, Lilian Gerdi Kittel Ries

Downloads: 0
Views: 49


Background: The effects of jaw movement pattern on masticatory activity during chewing remains unclear in chronic temporomandibular joint disorders individuals. Objective: to assess the effect of habitual and non-habitual mastication patterns based upon the activation of the masseter and temporalis muscles in individuals with or without temporomandibular joint disorder (TMJD). Methods: Fifty-four participants (age: 18–44 years) were divided into two groups: the TMJD (n=27) and control (n=27) groups. TMJD was identified using the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). Electromyographic activity of the masticatory muscles was measured during 2 tasks: habitual mastication with parafilm (HM) and non-habitual mastication with parafilm (NHM). MATLAB software was used to process electromyography (EMG) signals. The root mean square, symmetry index (SI%), anteroposterior coefficient (APC%) and torque coefficient (TC%) were determined from the processed EMG signal. Results: Reduced right masseter activation was observed for the TMJD group (p<0.05) during jaw agonist phase. During the jaw agonist phase, all muscles presented with more activation during NHM. Symmetry of temporalis (ST%) and APC% were the lowest for HM. TC% was increased for HM. Conclusion: Habitual and non-habitual mastication differ in masticatory activity during jaw agonist and antagonist phase and TMJD individuals presented a different way to recruit muscles under these circumstances. Non-habitual mastication has a more coordinating and stable motor pattern in masticatory activity and has less variability than habitual mastication to assess masticatory activity.


Mastication; Electromyography; Temporomandibular Joint Disorder; Masticatory Muscles; Motor Activity


1. Goncalves DA, Dal Fabbro AL, Campos JA, Bigal ME, Speciali JG. Symptoms of temporomandibular disorders in the population: an epidemiological study. Journal of orofacial pain. 2010;24(3):270-8.

2. Schiffman E, Ohrbach R, Truelove E, Look J, Anderson G, Goulet JP, et al. Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) for Clinical and Research Applications: recommendations of the International RDC/TMD Consortium Network* and Orofacial Pain Special Interest Groupdagger. Journal of oral & facial pain and headache. 2014;28(1):6-27.

3. Mapelli A, Zanandrea Machado BC, Giglio LD, Sforza C, De Felicio CM. Reorganization of muscle activity in patients with chronic temporomandibular disorders. Archives of oral biology. 2016;72:164-71.

4. Ferreira CL, Machado BC, Borges CG, Rodrigues Da Silva MA, Sforza C, De Felicio CM. Impaired orofacial motor functions on chronic temporomandibular disorders. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2014;24(4):565-71.

5. Fassicollo CE, Machado BCZ, Garcia DM, de Felicio CM. Swallowing changes related to chronic temporomandibular disorders. Clinical oral investigations. 2018.

6. Peck CC, Murray GM, Gerzina TM. How does pain affect jaw muscle activity? The Integrated Pain Adaptation Model. Australian dental journal. 2008;53(3):201-7.

7. Strini PJ, Strini PJ, Barbosa Tde S, Gaviao MB. Assessment of thickness and function of masticatory and cervical muscles in adults with and without temporomandibular disorders. Archives of oral biology. 2013;58(9):1100- 8.

8. Xu L, Fan S, Cai B, Fang Z, Jiang X. Influence of sustained submaximal clenching fatigue test on electromyographic activity and maximum voluntary bite forces in healthy subjects and patients with temporomandibular disorders. Journal of oral rehabilitation. 2017;44(5):340-6.

9. Ries LG, Graciosa MD, Soares LP, Sperandio FF, Santos GM, Degan VV, et al. Effect of time of contraction and rest on the masseter and anterior temporal muscles activity in subjects with temporomandibular disorder. CoDAS. 2016;28(2):155-62.

10. Lauriti L, Motta LJ, de Godoy CH, Biasotto-Gonzalez DA, Politti F, Mesquita-Ferrari RA, et al. Influence of temporomandibular disorder on temporal and masseter muscles and occlusal contacts in adolescents: an electromyographic study. BMC musculoskeletal disorders. 2014;15:123. doi: 10.1186/1471-2474-15-123.

11. Ries LG, Graciosa MD, Medeiros DL, Pacheco SC, Fassicolo CE, Graefling BC, et al. Influence of craniomandibular and cervical pain on the activity of masticatory muscles in individuals with Temporomandibular Disorder. CoDAS. 2014;26(5):389-94.

12. Pitta NC, Nitsch GS, Machado MB, de Oliveira AS. Activation time analysis and electromyographic fatigue in patients with temporomandibular disorders during clenching. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2015;25(4):653-7.

13. De Felicio CM, Mapelli A, Sidequersky FV, Tartaglia GM, Sforza C. Mandibular kinematics and masticatory muscles EMG in patients with short lasting TMD of mild-moderate severity. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2013;23(3):627-33.

14. Politti F, Casellato C, Kalytczak MM, Garcia MB, Biasotto-Gonzalez DA. Characteristics of EMG frequency bands in temporomandibullar disorders patients. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2016;31:119- 25.

15. Remijn L, Groen BE, Speyer R, van Limbeek J, Nijhuis-van der Sanden MW. Reproducibility of 3D kinematics and surface electromyography measurements of mastication. Physiology & behavior. 2016;155:112-21.

16. Briesemeister M, Schmidt KC, Ries LG. Changes in masticatory muscle activity in children with cerebral palsy. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2013;23(1):260-6.

17. Karkazis HC, Kossioni AE. Re-examination of the surface EMG activity of the masseter muscle in young adults during chewing of two test foods. Journal of oral rehabilitation. 1997;24(3):216-23.

18. Rovira-Lastra B, Flores-Orozco EI, Salsench J, Peraire M, Martinez-Gomis J. Is the side with the best masticatory performance selected for chewing? Archives of oral biology. 2014;59(12):1316-20.

19. Nissan J, Gross MD, Shifman A, Tzadok L, Assif D. Chewing side preference as a type of hemispheric laterality. Journal of oral rehabilitation. 2004;31(5):412-6.

20. Diernberger S, Bernhardt O, Schwahn C, Kordass B. Self-reported chewing side preference and its associations with occlusal, temporomandibular and prosthodontic factors: results from the population-based Study of Health in Pomerania (SHIP-0). Journal of oral rehabilitation. 2008;35(8):613-20.

21. Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology. 2000;10(5):361-74.

22. Abbink JH, van der Bilt A, van der Glas HW. Detection of onset and termination of muscle activity in surface electromyograms. Journal of oral rehabilitation. 1998;25(5):365-9.

23. Ferrario VF, Sforza C, Colombo A, Ciusa V. An electromyographic investigation of masticatory muscles symmetry in normo-occlusion subjects. Journal of oral rehabilitation. 2000;27(1):33-40.

24. Ferrario VF, Tartaglia GM, Galletta A, Grassi GP, Sforza C. The influence of occlusion on jaw and neck muscle activity: a surface EMG study in healthy young adults. Journal of oral rehabilitation. 2006;33(5):341-8.

25. Pierce CA, Block CA, Aguinis H. Cautionary note on reporting eta-squared values from multifactor anova designs. Educational and Psychological Measurement. 2004;64(6):916-24.

26. Hodges PW, Smeets RJ. Interaction between pain, movement, and physical activity: short-term benefits, long-term consequences, and targets for treatment. The Clinical journal of pain. 2015;31(2):97-107.

27. Avivi-Arber L, Martin R, Lee JC, Sessle BJ. Face sensorimotor cortex and its neuroplasticity related to orofacial sensorimotor functions. Archives of oral biology. 2011;56(12):1440-65.

28. Maulina T, Amhamed M, Whittle T, Gal J, Akhter R, Murray GM. The Effects of Experimental Temporalis Muscle Pain on Jaw Muscle Electromyographic Activity During Jaw Movements and Relationships with Some Psychological Variables. Journal of oral & facial pain and headache.32(1):29-39.

29. Santana-Mora U, Martinez-Insua A, Santana-Penin U, del Palomar AP, Banzo JC, Mora MJ. Muscular activity during isometric incisal biting. Journal of biomechanics. 2014;47(16):3891-7.

30. Chaves TC, Turci AM, Pinheiro CF, Sousa LM, Grossi DB. Static body postural misalignment in individuals with temporomandibular disorders: a systematic review. Brazilian journal of physical therapy. 2014;18(6):481-501.

5df1335d0e88257c03b5f735 mtprehab Articles
Links & Downloads

Man. Ther., Posturology Rehabil. J.

Share this page
Page Sections