Results 261 to 270 of about 6,735 (305)

Tractional Forces on Porcine Temporomandibular Joint Discs

Journal of Dental Research, 2009
Tractional forces on the temporomandibular joint (TMJ) disc predispose tissue fatigue. This study tested the hypotheses that tractional forces: (1) increased with stress-field velocity ( V) and aspect ratio ( AR, contact area diameter/cartilage thickness), and compressive strain (ε); and (2) varied depending on cartilage thickness.
J C, Nickel, L R, Iwasaki, M W, Beatty, D B, Marx   +3 more
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Temporomandibular joint disc perforation: a retrospective study

International Journal of Oral and Maxillofacial Surgery, 2017
The aim of this study was to evaluate disc perforation diagnosed in patients undergoing arthroscopy of the temporomandibular joint (TMJ). A retrospective analysis of 33 patients with disc perforation (35 joints) was performed. Patients and joints were divided into two groups: those with distal perforation (DP; perforation of the retrodiscal tissue, or ...
V, Machon, J, Levorova, D, Hirjak, M, Drahos, R, Foltan   +4 more
openaire   +2 more sources

Ultrastructure of the bovine temporomandibular joint disc

Archives of Oral Biology, 1994
Electron micrographs of tissue samples taken from the peripheral zones of bovine temporomandibular joint discs showed a preponderance of thicker collagen fibrils (mean diameter 97.6 +/- 18.9 nm), occupying a greater portion of the extracellular matrix (49.7 +/- 4.6%) and more closely spaced (mean fibril separation 38 +/- 7.2 nm) than fibrils from the ...
I M, Kuc, P G, Scott
openaire   +2 more sources

Dynamic Shear Properties of the Temporomandibular Joint Disc

Journal of Dental Research, 2003
Shear stress might be an important factor associated with fatigue failure and damage of the temporomandibular joint disc. Little information, however, is available on the dynamic behavior of the disc in shear. Since the disc is an anisotropic and viscoelastic structure, in the present study the dependency of the dynamic shear behavior on the direction
Tanaka, E., Hanaoka, K., van Eijden, T.M.G.J., Tanaka, M., Watanabe, M., Nishi, M., Kawai, N., Murata, H., Hamada, T., Tanne, K.   +9 more
openaire   +3 more sources

Dynamic Properties of the Human Temporomandibular Joint Disc

Journal of Dental Research, 2001
The cartilaginous intra-articular disc of the human temporomandibular joint shows clear anteroposterior variations in its morphology. However, anteroposterior variations in its tissue behavior have not been investigated thoroughly. To test the hypothesis that the mechanical properties of fresh human temporomandibular joint discs vary in ...
Beek, M., Aarnts, M.P., Koolstra, J.H., Feilzer, A.J., van Eijden, T.M.G.J.   +4 more
openaire   +4 more sources

[Temporomandibular joint disc surgery].

Revue de stomatologie, de chirurgie maxillo-faciale et de chirurgie orale, 2017
Temporomandibular joint (TMJ) disorders are a common disease and may be responsible for major functional and painful repercussions. Treatment is not consensual. The literature highlights the role of conservative treatments (physiotherapy, analgesics, splints) in a first attempt.
J, Potier, J-M, Maes, R, Nicot, T, Dumousseau, M, Cotelle, J, Ferri   +5 more
openaire   +1 more source

Temporomandibular Joint Soft-Tissue Pathology, I: Disc Abnormalities

Seminars in Ultrasound, CT and MRI, 2007
The internal derangements are the most common noninflammatory abnormalities of the disc, observed even in asymptomatic subjects. Because the temporomandibular joint shows large adaptative and compensatory mechanisms over dysfunctional disc motion, these disorders may be asymptomatic or minimally evident for a long time.
Francesco, Molinari, Paolo Francesco, Manicone, Luca, Raffaelli, Renzo, Raffaelli, Tommaso, Pirronti, Lorenzo, Bonomo   +5 more
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Chondrocyte apoptosis in temporomandibular joints with disc displacement

Journal of Oral and Maxillofacial Surgery, 2002
We sought to study the presence of apoptosis in cartilage from rabbit temporomandibular joints with disc displacement (DD), and to examine the relationship between chondrocyte apoptosis and chondrocyte proliferation.Thirty Japanese white rabbits were used in this study. The right joints of 20 rabbits were subjected to surgical DD.
Zhiyuan, Gu, Takanori, Shibata, Zhiqiang, Cao, Jianying, Feng, Ji'an, Hu   +4 more
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Biochemical analysis of the porcine temporomandibular joint disc

British Journal of Oral and Maxillofacial Surgery, 2006
Tissue engineering can be a boon in treating lesions of the disc in the temporomandibular joint (TMJ). Unfortunately, little is known about its biochemical content, so we analysed the discs of six slaughtered pigs. We measured the content and distribution of total DNA, glycosaminoglycan, and collagen. The mean (S.D.) content of DNA was 0.14% (0.08%) of
A J, Almarza, A C, Bean, L S, Baggett, K A, Athanasiou   +3 more
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Dynamic compressive properties of porcine temporomandibular joint disc

European Journal of Oral Sciences, 2003
This study aimed to evaluate the effect of the strain frequency and amplitude on the compressive properties of the porcine temporomandibular joint disc and to determine the time‐dependent changes associated with energy dissipation. Seven discs were used for compressive cycle tests, including various frequencies and magnitudes of compressive strain ...
Eiji, Tanaka, Mayu, Kikuzaki, Koichi, Hanaoka, Masao, Tanaka, Akiko, Sasaki, Nobuhiko, Kawai, Yoshihiro, Ishino, Michiru, Takeuchi, Kazuo, Tanne   +8 more
openaire   +2 more sources