Open Access

Model identification of stomatognathic muscle system activity during mastication

  • Authors:
    • Edward Kijak
    • Jerzy Margielewicz
    • Danuta Lietz‑Kijak
    • Katarzyna Wilemska‑Kucharzewska
    • Marek Kucharzewski
    • Zbigniew Śliwiński
  • View Affiliations

  • Published online on: November 18, 2016     https://doi.org/10.3892/etm.2016.3921
  • Pages: 135-145
  • Copyright: © Kijak et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present study aimed to determine the numeric projection of the function of the mandible and muscle system during mastication. An experimental study was conducted on a healthy 47 year-old subject. On clinical examination no functional disorders were observed. To evaluate the activity of mastication during muscle functioning, bread cubes and hazelnuts were selected (2 cm2 and 1.2/1.3 cm in diameter, respectively) for condyloid processing. An assessment of the activity of mastication during muscle functioning was determined on the basis of numeric calculations conducted with a novel software programme, Kinematics 3D, designed specifically for this study. The efficacy of the model was verified by ensuring the experimentally recorded trajectories were concordant with those calculated numerically. Experimental measurements of the characteristic points of the mandible trajectory were recorded six times. Using the configuration coordinates that were calculated, the dominant componential harmonics of the amplitude‑frequency spectrum were identified. The average value of the dominant frequency during mastication of the bread cubes was ~1.16±0.06 Hz, whereas in the case of the hazelnut, this value was nearly two-fold higher at 1.84±0.07 Hz. The most asymmetrical action during mastication was demonstrated to be carried out by the lateral pterygoid muscles, provided that their functioning was not influenced by food consistency. The consistency of the food products had a decisive impact on the frequency of mastication and the number of cycles necessary to grind the food. Model tests on the function of the masticatory organ serve as effective tools since they provide qualitative and quantitative novel information on the functioning of the human masticatory organ.
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January-2017
Volume 13 Issue 1

Print ISSN: 1792-0981
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Spandidos Publications style
Kijak E, Margielewicz J, Lietz‑Kijak D, Wilemska‑Kucharzewska K, Kucharzewski M and Śliwiński Z: Model identification of stomatognathic muscle system activity during mastication. Exp Ther Med 13: 135-145, 2017
APA
Kijak, E., Margielewicz, J., Lietz‑Kijak, D., Wilemska‑Kucharzewska, K., Kucharzewski, M., & Śliwiński, Z. (2017). Model identification of stomatognathic muscle system activity during mastication. Experimental and Therapeutic Medicine, 13, 135-145. https://doi.org/10.3892/etm.2016.3921
MLA
Kijak, E., Margielewicz, J., Lietz‑Kijak, D., Wilemska‑Kucharzewska, K., Kucharzewski, M., Śliwiński, Z."Model identification of stomatognathic muscle system activity during mastication". Experimental and Therapeutic Medicine 13.1 (2017): 135-145.
Chicago
Kijak, E., Margielewicz, J., Lietz‑Kijak, D., Wilemska‑Kucharzewska, K., Kucharzewski, M., Śliwiński, Z."Model identification of stomatognathic muscle system activity during mastication". Experimental and Therapeutic Medicine 13, no. 1 (2017): 135-145. https://doi.org/10.3892/etm.2016.3921