Application of digital image correlation method to assess temporalis muscle activity during unilateral cyclic loading of the human masticatory system

Application of digital image correlation method to assess temporalis muscle activity during unilateral cyclic loading of the human masticatory system

Dominik Pachnicz, Przemysław Stróżyk

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Abstract. This paper presents an in vivo experimental study in which an optical digital image correlation system was used to assess the activity of the temporalis muscle. The muscle activity was analysed and assessed based on its displacements resulting from unilateral cyclic loading and unloading of a specimen placed on one side of the mandible between pairs of corresponding premolars and molars. Two sets of synchronised cameras (two per side) positioned on the working and non-working sides were used for the measurements. The results of the measurements were analysed individually for each part of the muscle, i.e. the anterior temporalis, the middle temporalis and the posterior temporalis and each side. The results indicate that the presented measurement method made it possible to determine temporalis muscle activity in vivo from displacement measurements. It also confirms the information on temporalis muscle function given by other researchers. In addition, the advantage of the presented method is that it offers significantly greater measurement capabilities (larger area of analysis) than other measurement methods, such as electromyography.

In Vivo Measurements, Optical Method, Masticatory Muscle Activity

Published online , 7 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Dominik Pachnicz, Przemysław Stróżyk, Application of digital image correlation method to assess temporalis muscle activity during unilateral cyclic loading of the human masticatory system, Materials Research Proceedings, Vol. 30, pp 61-67, 2023


The article was published as article 9 of the book Experimental Mechanics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] A.L.Hof, The relationship between electromyogram and muscle force. Sportverletz Sportsc. 11 (1997) 79–86,
[2] G.J. Pruim, H.J. de Jongh, J.J. ten Bosch, Forces acting on the mandible during bilateral static bite at different bite force levels. J. Biomech. 13 (1980) 755–763,
[3] B. May, S. Saha, M. Saltzman, A three–dimensional mathematical model of temporomandibular joint loading. Clin. Biomech. 16 (2001) 489–495,
[4] M. Radu, M. Marandici, T.L. Hottel, The effect of clenching on condylar position: a vector analysis model. J. Prosthet. Dent. 91 (2004) 171–179,
[5] T.S. Buchanan, D.G. Lloyd, K. Manal, T.F. Besier, Neuromusculoskeletal modeling: estimation of muscle forces and joint moments and movements from measurements of neural command. J. Appl. Biomech. 20 (2004) 367–395,
[6] A.G. Hannam, Current computational modelling trends in craniomandibular biomechanics and their clinical implications. J. Oral. Rehabil. 38 (2011) 217–234,
[7] P. Stróżyk, J. Bałchanowski, Effect of foodstuff on muscle forces during biting off. Acta Bioeng. Biomech. 18 (2016) 81–91, PMID: 27405536
[8] P. Stróżyk, J. Bałchanowski, Modelling of the forces acting on the human stomatognathic system during dynamic symmetric incisal biting of foodstuffs. J. Biomech. 79 (2018) 58–66,
[9] P. Stróżyk, J. Bałchanowski, Effect of foods on selected dynamic parameters of mandibular elewator muscles during symmetric incisal biting. J Biomech. 106 (2020) 109800,
[10] P. Koole, F. Beenhakker, H. J. de Jongh, G. Boering, A standardized technique for the placement of electrodes in the two heads of the lateral pterygoid muscle. J. Craniomandib Pract. 8 (1990) 154162,
[11] G. M. Murray, T. Orfanos, J. Y. Chan, K. Wanigaratne, I. J. Klineberg, Electromyographic activity of the human lateral pterygoid muscle during contralateral and protrusive jaw, movements. Arch. Oral Biol. 44 (1999) 269285,
[12] Information on
[13] M. Tuijt, J.H. Koolstra, F. Lobbezoo, M. Naeije, Differences in loading of the temporomandibular joint during opening and closing of the jaw. J Biomech. 43 (2010) 1048-54, DOI: 10.1016/j.jbiomech.2009.12.013,
[14] J.M. Reina, J.M. Garcia-Aznar, J. Dominguez, M. Doblaré, Numerical estimation of bone density and elastic constants distribution in a human mandible. J. Biomech. 40 (2007) 826–836,
[15] T.W.P. Korioth, D.P. Romilly, A.G. Hannam, Three-dimensional finite element stress analysis of the dentate human mandible. Am. J. Phys. Anthropol. 88 (1992) 69–96,
[16] D. Luo, Q. Rong, Q.Chen, Finite-element design and optimization of a three-dimensional tetrahedral porous titanium scaffold for the reconstruction of mandibular defects. Med Eng Phys. 47 (2017) 176–183,
[17] G.E.J. Langenbach, A.G. Hannam, The role of passive muscle tensions in a three-dimensional dynamic model of the human jaw. Arch. Oral Biol. 44 (1999) 557–573,
[18] J.H. Koolstra, T.M.G.J. van Eijden, W.A. Weijs, M. Naeije, A three-dimensional mathematical model of the human masticatory system predicting maximum possible bite forces. J. Biomech. 21 (1988) 563–576,
[19] M. Pinheiro, J.L. Alves, The feasibility of a custom-made endoprosthesis in mandibular reconstruction: Implant design and finite element analysis. J Craniomaxillofac Surg. 43 (2015) 2116–2128,
[20] K. Aldana, R. Miralles, A. Fuentes, S. Valenzuela, M.J. Fresno, H. Santander, M.F. Gutiérrez, Anterior Temporalis and Suprahyoid EMG Activity During Jaw Clenching and Tooth Grinding, CRANIO®, 29 (2011) 261-269,
[21] L. Lauriti, L.J. Motta, C.H.L. de Godoy, D.A. Biasotto-Gonzalez, F. Politti, R.A. Mesquita-Ferrari, K.P.S. Fernandes, S.K. Bussadori, Influence of temporomandibular disorder on temporal and masseter muscles and occlusal contacts in adolescents: an electromyographic study. BMC Musculoskelet. Disord.15 (2014) 123, doi: 10.1186/1471-2474-15-123
[22] A. Sabaneeff, L.D. Caldas, M.A.C. Garcia, M.C.G. Nojima, Proposal of surface electromyography signal acquisition protocols for masseter and temporalis muscles. Res Biomed Eng. 33 (2017) 324-330,