INVESTIGATION OF THE BIOMECHANICS OF THE COMPLEX «TOOTH-PERIODONTAL LIGAMENT-BONE TISSUE» IN EXPERIMENT
DOI:
https://doi.org/10.54890/.v2i2.310Abstract
Summary. New data on the response of periodontal tissues to the load allow us to understand the
processes occurring in the dentition during chewing, orthodontic treatment and prosthetics. An in
vitro experiment on cadaveric segments of the mandible with a preserved periodontal ligament was
carried out when individual teeth were loaded with subsequent recording of deformations using the
method of holographic interferometry. The obtained evaluation results of deformation of various
periodontal components allowed to calculate the average coefficient reflecting the deformation ratio
of all periodontal complex to an isolated strain of the jawbone in the area of the loaded tooth. This
parameter has been equal to 2.69 ± 1.09. In addition, the coefficient has been determined,
characterizing the deformation of the periodontal ligament depending on the magnitude of the load,
equal to 1,89±1,15 μm/kgf. Determined parameters in the future can be used to solve a wide range of
scientific and practical problems.
Keywords:
periodontal ligament, bone tissue, stress-strained state, linear properties, holographic interferometry.References
1. Fill, T.S., Toogood, R.W., Major, P.W., Carey. J.P. Analytically determined mechanical properties of, and models for the periodontal ligament: critical review of literature.J Biomech. 2012;45(1):9-16.
2. Liu, D.X., Wang, H.N., Wang C.L., Liu H., Sun, P., Yuan, X. Modulus of elasticity of human periodontal ligament by optical measurement and numerical simulation. Angle Orthodontist. 2011; 81(2):229-236.
3. Ted, S.F., Carey, J.P., Toogood, R.W., Major, P.W. Experimentally Determined Mechanical Properties of, and Models for, the Periodontal Ligament: Critical Review of Current Literature // Journal of Dental Biomechanics. 2011. doi:10.4061/2011/312980.
4. Papadopoulou, K., Keilig, L., Eliades, T., Krause, R., Jäger, A., Bourauel, C. The time-dependent biomechanical behaviour of the periodontal ligament--an in vitro experimental study in minipig mandibular two-rooted premolars. Eur J Orthod. 2014;36(1):9-15.
5. Наумович С.С., Дрик Ф.Г. Биомеханические свойства комплекса «зуб-периодонтальная связка - костная ткань» в эксперимент. Современная стоматология. 2017;2:58-61. https://doi.org/10.54890/1694-6405_2022_2_83
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