Diurnal Difference between Mandibular Condyle Movement with Unilateral Temporomandibular Joint Clicking in the Morning and that in the Evening

2014 ◽  
Vol 27 (1) ◽  
pp. 13-17
Author(s):  
JUN SAKAI ◽  
TAKASHI UCHIDA ◽  
YASUHIRO OKAMOTO ◽  
SHO KUBODERA ◽  
MASUMI KAJIMOTO ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Mandibular Condyle ◽  
Diurnal Difference ◽  
Condyle Movement

Bilateral temporomandibular joint ankylosis as sequel of bilateral fracture of the mandibular condyle and symphysis

2013 ◽  
Vol 18 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Matheus B Benaglia ◽  
Ellen Cristina Gaetti-Jardim ◽  
Janayna G Paiva Oliveira ◽  
Jose Carlos Garcia Mendonça
Keyword(s):  
Temporomandibular Joint ◽  
Mandibular Condyle ◽  
Temporomandibular Joint Ankylosis ◽  
Bilateral Fracture ◽  
Joint Ankylosis

Effect of Mechanical Stress on Rheumatoid Arthritis of the Temporomandibular Joint: a Morphological and Histological Evaluation

2021 ◽  
Author(s):  
Kohei Nagai ◽  
Takenobu Ishii ◽  
Yasushi Nishii
Keyword(s):  
Rheumatoid Arthritis ◽  
T Cell ◽  
Mechanical Stress ◽  
Temporomandibular Joint ◽  
Mandibular Condyle ◽  
Γδ T Cells ◽  
Histological Evaluation ◽  
Control Group ◽  
Condylar Cartilage ◽  
Layer Width

Abstract Background Rheumatoid arthritis of the temporomandibular joint (TMJ-RA) has been reported to have a larger incidence range than systemic rheumatoid arthritis (RA). The presence or absence of mechanical stress (MS) is considered a factor in this. In this study, we hypothesized that TMJ-RA develops or worsens when excessive MS is applied to the temporomandibular joint of RA mouse models. We aimed to clarify the relationship between TMJ-RA and MS through morphological and histological evaluation. Methods Collagen antibody-induced arthritis (CAIA) was induced in male DBA/1JNCrlj 9–12 weeks old mice by administering Type II collagen antibody and lipopolysaccharide to produce RA model mice. MS was applied to the mandibular condyle. The group was separated into non-RA (control group (N = 5) and MS group (N = 5)), and RA group (CAIA group (N = 5)and CAIA MS group (N = 5)). To confirm the morphological changes in the mandibular condyle, micro-CT imaging was performed. Histological evaluation of the TMJ was performed by hematoxylin and eosin staining for condylar cartilage cell layer thickness, Safranin O staining for proteoglycans, and tartrate-resistant acidic phosphatase staining for osteoclast count. Immunohistochemical evaluation was performed to assess the localization of cartilage destruction enzymes using ADAMTS-5 (a disintegrin and metalloproteinase with thrombospondin motifs) antibody. Additionally, CD3 (cluster of differentiation), CD45, and γδ TCR (T cell receptor) antibodies were used to localize and identify the type of lymphocytes. Results In the CAIA MS model, a three-dimensional analysis of the temporomandibular joint by microcomputer tomography showed a crude change in the surface of the mandibular condyle. Histological examination revealed a decrease in the chondrocyte layer width and an increase in the number of osteoclasts in the mandibular condyle. T cell accumulation was observed, and γδ T cell involvement was confirmed. Conclusions In the CAIA model, the TMJ was less sensitive to the initiation of RA. However, the results suggested that it was exacerbated by MS, and that γδ T cells may be involved in TMJ-RA.

TMJ imaging: more pictures, less talk

2011 ◽  
Vol 2 (4) ◽  
pp. 172-182 ◽  
Author(s):  
Jimmy Makdissi de C Williams
Keyword(s):  
Rheumatoid Arthritis ◽  
Skull Base ◽  
Temporomandibular Joint ◽  
Temporal Bone ◽  
Mandibular Condyle ◽  
Degenerative Joint Disease ◽  
Joint Disease ◽  
Number Of Factors ◽  
Muscles Of Mastication ◽  
Anatomical Area

The temporomandibular joint (TMJ) is a complex anatomical area consisting of the mandibular condyle and the temporal bone of the skull base. It comes under the influence of a number of factors including the muscles of mastication, teeth, occlusion and the contralateral joint and thus there exists a spectrum of conditions. Internal derangement and degenerative joint disease remain the most common although there are a range of other less frequently occurring conditions such as rheumatoid arthritis, trauma and ankylosis.

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