The effect of karate practice on the functional state of the temporomandibular joint
- Authors: Astahov V.V.1, Zemtsov I.R.1, Ignatov P.M.1, Oleinikov A.A.1
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Affiliations:
- Ryazan State Medical University named after academician I.P.Pavlova
- Issue: Vol 14 (2025): Материалы XXI Международного Бурденковского научного конгресса 24-26 апреля 2025
- Pages: 751-752
- Section: Стоматология
- URL: https://new.vestnik-surgery.com/index.php/2415-7805/article/view/10830
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Abstract
The purpose of the work. To study the functional state of the TMJ in professional karate fighters and compare it with that of amateur and non-athletes
Materials and methods of research. At the Department of Orthopedic Dentistry and Orthodontics of the Ryazan State Medical University of the Ministry of Health of the Russian Federation, a study was conducted on 12 patients aged 18 to 25 years with 4 to 15 years of athletic experience in martial arts. For the study, a survey, an objective examination, electromyography, computed tomography of the TMJ, and an assessment of the TMJ dysfunction index using the M. Helkimo method were used on subjects of different groups, after which the results were analyzed.
The groups of subjects were professional karatekas (group 1; they practice karate for a long time (9-15 years), regularly compete at high-level competitions; n = 4), amateur karatekas (group 2; they practice from 2 to 8 years, rarely compete at amateur tournaments; n = 4), and non-athletes (group 3; persons who are healthy in terms of dental status.
List of literature
Orthopedic dentistry, Faculty course: textbook / V.N. Trezubov, A.S. Shcherbakov, L.M.Mishnev; edited by V.N.Trezubov. - 10th Ed., Revised. And add. - Moscow, GEOTAR-Media, 2024, 686 pages.
"Orthopedic dentistry. National leadership. In 2 volumes. Volume 1", authors: Lebedenko I. Yu., Arutyunov S. D., GEOTAR-Media publishing house, 2022.
Orthopedic dentistry : a textbook. In 2 hours 2. 2nd edition / S.A. Naumovich [et al.] ; under the general editorship of S.A. Naumovich, A.S. Borunov, S.S.Naumovich. – Minsk : Higher School, 2020. – 332 p.
Keywords
Full Text
The temporomandibular joint (TMJ) is an ellipsoid complex biaxial combined joint that provides horizontal, vertical, sagittal (forward-backward) movement of the lower jaw relative to the upper jaw. Various combinations of these movements allow a person to chew, swallow and speak. The TMJ consists of the head of the lower jaw, the glenoid fossa of the temporal bone, a dense cartilaginous disc located between them, and a capsule surrounding this joint on all sides. The joint is held in the correct anatomical position by the muscular-ligamentous apparatus, which, by limiting the range of motion of the TMJ, prevents its damage [1].
Unfortunately, some groups of people are more likely to experience TMJ injuries, for example, athletes involved in combat sports. Trauma to the temporomandibular joint (TMJ) can lead to the following consequences:
- internal TMJ disorders, displacement or rupture of the capsule and ligaments of the joint;
- development of traumatic arthritis of the TMJ;
- neuralgia of the facial nerves and difficulty chewing;
- development of asymmetry and displacement of the cosmetic center of the face;
- clicking, crunching, pain when chewing;
- severe headaches, dizziness, tinnitus;
- redistribution of the load on certain areas of the dentition, which leads to excessive abrasion of the enamel of some teeth;
- hypertonicity of the masticatory muscles. [2]
Due to the high intensity and duration of training required to achieve success in major competitions, professional athletes are more likely to experience facial injuries, their number can be two to five times higher than that of amateurs.[3]
Keywords: TMJ, karate, dysfunction, injury.
About the authors
Vladislav Valerievich Astahov
Ryazan State Medical University named after academician I.P.Pavlova
Email: vladastaho12317@gmail.com
ORCID iD: 0009-0002-2191-8198
Russian Federation, 390013, Russia, Ryazan, st. Vysokovoltnaya, 11
Ivan Romanovich Zemtsov
Ryazan State Medical University named after academician I.P.Pavlova
Email: zrvzir40@gmail.com
ORCID iD: 0009-0002-4995-5345
Russian Federation, 390013, Russia, Ryazan, st. Vysokovoltnaya, 11
Pavel Maksimovich Ignatov
Email: vladastaho12317@gmail.com
ORCID iD: 0009-0009-6326-3194
Russian Federation
Alexandr Alexandrovich Oleinikov
Author for correspondence.
Email: vladastah012317@gmail.com
ORCID iD: 0000-0002-2245-1051
Russian Federation
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- К.Г. Караков . Жевательная система человека. Биомеханика жевательного аппарата [Текст]: учебнометодическое пособие / сост.: К.Г. Караков, Е.А. Брагин, С.В. Новиков, Т.П. Данченко, Н.В. Плескановская. - Ставрополь: Изд-во СтГМА, 2006. - 46 с.
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