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    Tytuł:
    Temporomandibular joint arthrocentesis in a rabbit model: technique and recommendations in the study of temporomandibular disorders
    Autorzy:
    Iturriaga, V.
    Vásquez, B.
    Veuthey, C.
    del Sol, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087558.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    temporomandibular joint
    temporomandibular joint disorders
    arthrocentesis
    rabbit
    Źródło:
    Polish Journal of Veterinary Sciences; 2019, 2; 321-326
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ przecięcia tkanek na wyniki badań właściwości mechanicznych krążków stawu skroniowo-żuchwowego
    The influence of tissue incision on the examination results regarding temporomandibular joint discs mechanical properties
    Autorzy:
    Chladek, W.
    Czerwika, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/284900.pdf
    Data publikacji:
    2007
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    staw skroniowo-żuchwowy
    temporomandibular joint
    Źródło:
    Engineering of Biomaterials; 2007, 10, no. 67-68; 16-18
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early diagnostics of temporomandibular joint structural elements injures caused by traumatic mandibular bone fractures
    Autorzy:
    Pohranychna, Kh. R
    Stasyshyn, A.R
    Matolych, U.D
    Powiązania:
    https://bibliotekanauki.pl/articles/1393593.pdf
    Data publikacji:
    2017
    Wydawca:
    Index Copernicus International
    Tematy:
    mandibular articular process fractures
    temporomandibular joint
    Opis:
    A rapidly increasing number of mandibular condylar fractures and some complications related to injuries of temporomandibular elements make this study important. Intra-articular disorders lead to secondary pathological findings such as osteoarthritis, deforming osteoarthrosis, and temporomandibular joint ankylosis that limits mouth opening, mastication, swallowing, breathing, and decreased/lost working capacity or disability. Early diagnosis of intra-articular disorders can prevent from long-lasting functional complications caused by temporomandibular joint injuries. This study was performed for the purpose of early detection and investigation of organic pathological changes in the cartilaginous and osseous tissues of the temporomandibular joint caused by traumatic fractures of the mandibular condyle. Twenty patients underwent a general clinical examination, magnetic resonance imaging (MRI), and immune-enzyme testing for biochemical markers of connective tissue injury (pyridinoline and deoxypyridinoline) in urine. Disk dislocation, deformation, adhesion, perforation or squeeze, tension or disruption of ligaments, and injury of articular surfaces are among complications of mandibular fractures that can be revealed on MRI. As regards biochemical findings, we revealed a sharp rise in the levels of pyridinoline and deoxypyridinoline before treatment and a lack of stabilization within 21 days of treatment.
    Źródło:
    Polish Journal of Surgery; 2017, 89, 3; 31-35
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Implants of the temporomandibular joint
    Autorzy:
    Borkowski, Piotr
    Chwiedosik, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/chapters/2215593.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    temporomandibular joint
    reconstruction
    custom made implants
    Opis:
    Disorders of the temporomandibular joint are the result of degenerative diseases of the musculoskeletal system associated with morphological and functional deformities. Joint reconstruction is indicated in patients in whom conservative treatment has failed and a significant proportion of the joint has been lost. The use of total implants reconstructing the head and acetabulum has become a standard. Also, an individual design of plates adjacent to the bone is becoming an accepted norm. The developed procedures include the process of obtaining data using computed tomography, individual implant fitting and verification engineering analyses. The paper presents an example of an individual design process for a temporomandibular joint implant.
    Źródło:
    Advances in biomedical engineering; 7-14
    9788367185400
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Could lower leg Wartenberg test be used as a predictor of restrictions in temporomandibular joint movements in CP patients
    Autorzy:
    Syczewska, M.
    Szczerbik, E.
    Graff, K.
    Olczak-Kowalczyk, D.
    Dąbrowska-Gontarczyk, A.
    Kalinowska, M.
    Jelonek, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/306690.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    spastyczność
    staw skroniowo-żuchwowy
    Zebris
    spasticity
    temporomandibular joint
    Wartenberg test
    Opis:
    Purpose: Patients with spasticity suffer not only from neurological problems but also from various dentistry problems due to spasticity of the jaw muscles. Measurements of motion in temporomandibular joints should reflect the amount of abnormal muscle tone of these muscles. The aim of this study was to find out if the measurements of temporomandibular joint movements performed with the ultrasound Zebris device are different in cerebral palsy patients than in healthy subjects; and to find out if the information on the degree of spasticity in the lower legs provided by the Wartenberg test could be used to predict the degree of spasticty in the jaw muscles. Method: Twenty five healthy subjects and 25 cerebral palsy patients participated in the study. Two types of measurements were performed: temporomandibular movements measured with Zebris device, and instrumented Wartenberg test. Results: The laterotrusion and opening movements are different in CP patients than in healthy subjects. Laterotrusion movement correlates with velocity measured during the Wartenberg test. Conclusion: This finding suggests that high spasticity in the lower legs could indicate jaw movement restrictions in CP patients.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2016, 18, 2; 3-7
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of the Position of the Mandible on Stresses and Displacements within the Structures of the Temporomandibular Joint
    Wpływ położenia żuchwy na naprężenia i przemieszczenia w strukturach stawu skroniowo-żuchwowego
    Autorzy:
    Ryniewicz, Anna M.
    Mazur, Konrad
    Bojko, Łukasz
    Ryniewicz, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/1857799.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    temporomandibular joint
    modeling
    strength simulations
    staw skroniowo-żuchwowy
    modelowanie
    symulacje wytrzymałościowe
    Opis:
    A model of the temporomandibular joint (TMJ) was developed using the finite element method (FEM). The aim of the procedure is to identify reduced stresses and resultant displacements in the TMJ and to evaluate the transfer of contact loads for the three articulation states of the mandible that represent the activity of the joint. The study mapped the layered structure of the bio-bearing with different strength parameters of the tissues and synovial fluid. The model was loaded with the forces generated by the mandibular abduction muscles during chewing. Our method allowed for the assessment of the transfer of physiological loads within surfaces when lubricating with the synovial fluid and showed compressive stimulation of bone structures. Under load transfer conditions, the maximum values of reduced stresses are located not in the immediate friction zone, but in the structures of the compact and spongy bone.
    Opracowano model stawu skroniowo-żuchwowego (SSŻ) z wykorzystaniem metody elementów skończonych (MES). Celem jest identyfikacja naprężeń zredukowanych i przemieszczeń wypadkowych w SSŻ oraz ocena przeniesienia obciążeń kontaktowych dla trzech stanów artykulacyjnych żuchwy, które są reprezentatywne dla czynności tego stawu. W badaniu odwzorowano warstwową budowę biołożyska o zróżnicowanych parametrach wytrzymałościowych tkanek oraz cieczy synowialnej. Model obciążono siłami generowanymi przez mięśnie odwodzące żuchwę w warunkach żucia pokarmów. Zaproponowana metoda pozwoliła na ocenę przeniesienia obciążeń fizjologicznych w stawie skroniowo-żuchwowym. Umożliwiła analizę funkcjonalną krążka stawowego i powierzchni stawowych w warunkach smarowania cieczą synowialną oraz wskazała na stymulację kompresyjną struktur kostnych. W warunkach przenoszenia obciążeń maksymalne wartości naprężeń zredukowanych zlokalizowane są nie w bezpośredniej strefie tarcia, ale w strukturach kości korowej i gąbczastej.
    Źródło:
    Tribologia; 2020, 293, 5; 27-38
    0208-7774
    Pojawia się w:
    Tribologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prevalence of temporomandibular disorders among junior high school students who play wind instruments
    Autorzy:
    Yasuda, Eriko
    Honda, Kosuke
    Hasegawa, Yoko
    Matsumura, Eiko
    Fujiwara, Masanori
    Hasegawa, Makoto
    Kishimoto, Hiromitsu
    Powiązania:
    https://bibliotekanauki.pl/articles/2177089.pdf
    Data publikacji:
    2015-09-18
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    adolescence
    temporomandibular disorders
    temporomandibular joint
    playing-related musculoskeletal disorder
    wind instruments
    maximal voluntary contraction
    Opis:
    Objectives This study investigated whether playing wind instruments has adverse effects on musculoskeletal functions among junior high school students who play in music clubs. Material and Methods The study included 210 junior high school students (35 boys, 175 girls) belonging to 1 of 4 different school clubs that practiced playing wind instruments more than 6 days/week. The mean age of the participants was 14 years. The study was performed using a questionnaire survey and an electromyographic examination of jaw and cervical muscle activities during playing wind instruments. Results The prevalence of temporomandibular disorders (TMD) among the children playing woodwind (WW) or brass wind (BW) instruments was higher than in those playing non-wind (NW) instruments. Long duration of playing WW with a reed mouthpiece or BW with a small mouthpiece was suggested to affect the incidence of TMD, which was more marked in girls than in boys, irrespective of height or weight. Muscle activity in the masseter muscle during playing an instrument was significantly higher in the BW with a small mouthpiece group than in the NW group (p < 0.05). In cervical muscles, muscle activity of both the sternocleidomastoid and trapezius muscles was higher during playing BW than in the case of other instruments, and activity in the sternocleidomastoid muscle was significantly higher in the BW with a small mouthpiece group than in the case of other instrument groups (p < 0.05). Conclusions Playing wind instruments may have adverse effects on musculoskeletal functions among junior high school students playing in music clubs as compared with playing NW instruments. The prevalence of TMD among the students playing wind instruments was higher than in those playing other instruments. Long duration of playing those instruments affects musculoskeletal function, and this effect is more marked in girls than in boys, irrespective of height or weight.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2016, 29, 1; 69-76
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biomechanical study on the changes of stress in temporomandibular joints after the orthognathic surgery in patients with mandibular prognathism: a 3D finite element study
    Autorzy:
    Shu, Jingheng
    Wang, Quanyi
    Ma, Hedi
    Teng, Haidong
    Zheng, Tinghui
    Liu, Zhan
    Powiązania:
    https://bibliotekanauki.pl/articles/27324150.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    temporomandibular joint
    finite element method
    mandibular prognathism
    temporomandibular disorders
    staw skroniowo-żuchwowy
    metoda elementów skończonych
    prognatyzm żuchwy
    zaburzenia skroniowo-żuchwowe
    Opis:
    Purpose: This study aimed to analyze the changes of the stress distributions in TMJs for the pre- and postoperative patients with mandibular prognathism under unilateral occlusions, a frequent occlusion in mastication. Methods: Pre- and six-mouth postoperative cone-beam computed tomography images of thirteen patients diagnosed with mandibular prognathism were scanned and used to construct complete maxillofacial models, assigned as the Pre and Post group, respectively. Another ten asymptomatic individuals were defined as the Control group. The inhomogeneous properties were assigned to the models. The muscle forces and boundary conditions corresponding to left and right unilateral occlusions were applied on the models. The analysis of variation (ANOVA) was chosen for the comparison among the groups. Results: The results showed that the Pre group had abnormal stress distributions ang higher stress level in TMJs, compared with those of the Post and Control groups. Moreover, from clinical cases, symptoms of temporomandibular disorders (TMDs) always followed with increased stresses. Conclusion: Generally, orthognathic surgeries could improve the stress distribution in TMJs of the patients with mandibular prognathism under the unilateral occlusions. However, the postoperative complications, especially symptoms of TMD, were closely related to changes of stress for patients with mandibular prognathism after orthognathic surgeries. Individual virtual surgery and finite element analysis should be conducted to prevent complications in TMJ.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 2; 155--163
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Force ratio in masticatory muscles after total replacement of the temporomandibular joint
    Autorzy:
    Vilimek, M.
    Horak, Z.
    Baca, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/307085.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    dynamika odwrotna
    optymalizacja statyczna
    staw skroniowo-żuchwowy
    siły mięśniowe
    inverse dynamics
    static optimization
    temporomandibular joint
    muscle forces
    mastication
    FE analyses
    Opis:
    The temporomandibular (TM) joint is one of the most active joints in the human body, and any defect in this joint has a significant impact on the quality of life. The objective of this study was to analyze changes in the force ratio after TM joint replacement on contralateral TM joint loading. Implantation of an artificial TM joint often requires removal of 3 of the 4 masticatory muscles (activators). In order to perform true loading of the TM joint, loading during mastication was investigated. Input kinematic variables and mastication force were experimentally examined. The inverse dynamics approach and static optimization technique were used for solution of the redundant mechanism. Muscle forces, and reactions in the TM joint were calculated. We modified the model for several different tasks. The m. temporalis and m. masseter were removed individually and together and the forces of mastication on the TM joint were calculated for each variation. To evaluate the results, a parametric numerical FE analysis was created to compare the magnitude of the TM joint loading during the bite process for four different muscle resections. The results show an influence relative to the extent of muscle resection on contralateral TM joint loading in a total TM joint replacement. The biggest increase in the loading magnitude on the contralateral TM joint is most evident after m. masseter and m. temporalis resection. The results from all simulations support our hypothesis that the greater the extent of muscle resection the greater the magnitude of contralateral TM joint overloading.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2016, 18, 3; 131-136
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zaburzeń stawu skroniowo – żuchwowego w aspekcie aktywności bioelektrycznej
    Evaluation of temporomandibular disorders in bioelectrical activity aspect
    Autorzy:
    Szymańska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/99299.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    staw skroniowo-żuchwowy
    napięcie mięśniowe
    TMD
    aktywność bioelektryczna mięśni
    układ stomatognatyczny
    temporomandibular joint
    muscular tone
    muscles bioelectrical activity
    stomatognathic system
    Opis:
    Celem pracy była elektromiograficzna ocena i porównanie aktywności bioelektrycznej wybranych mięśni układu stomatognatycznego dwóch osób dotkniętych dysfunkcją stawu skroniowo – żuchwowego (ang. temporomandibular disorders - TMD) o różnym stopniu nasilenia, oraz osoby zdrowej deklarującej brak objawów TMD.
    The aim of the study was an electromyography assessment and comparison of stomatognatic system’s selected muscles bioelectrical activity. The material consisted of two subjects who suffers from differential intensity of temporomandibular disorders (TMD) and the another one who’s healthy and doesn’t declare symptoms of TMD
    Źródło:
    Aktualne Problemy Biomechaniki; 2014, 8; 151-156
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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