AIMS To establish a new model of zymosan-induced temporomandibular joint (TMJ) arthritis in the rat and to investigate the role of nitric oxide. METHODS Inflammation was induced by an intra-articular injection of zymosan into the left TMJ. Mechanical hypernociception, cell influx, vascular permeability, myeloperoxidase activity, nitrite levels, and histological changes were measured in TMJ la...

BACKGROUND A review of literature revealed that, although the involvement of temporomandibular joint (TMJ) in rheumatoid arthritis (RA) patients is not uncommon, variation in presentation persist. Comparative studies of bony changes in the right and left TMJ with the right and left peripheral hand (Metacarpophalangeal-MCP)/wrist joints have not been done, to the best of our knowledge. MATERIA...

Inflammatory joint diseases can affect the temporomandibular joint (TMJ) but there has been uncertainty to what extent. Most common are rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PS). Especially RA can cause a handicapping situation both generally and in the TMJ, which can cause difficulties in coping with ordinary life situations. The knowledge about long-t...

Characteristic bone profile of the temporomandibular joint (TMJ) develops and grows up to late teenage years.[1] TMJ bone structures alter their morphology according to functional and pathological conditions throughout life. In this study, differences in TMJ skeletal morphology between children and young adults (aged between 20 and 24 years) were compared. [2] The results of this study show the...

Temporomandibular joint (TMJ) dislocation in children is extremely rare. In our case, an 18-month-old child presented with a history of inability to close her mouth. To confirm the clinical diagnosis, a computed tomogram was taken. Clinical examination and X-ray of the TMJ revealed bilateral TMJ dislocation. Bilateral TMJ reduction was achieved manually after giving analgesia and procedural sed...

James Costen, otolaryngologist, cited by Edward F. Wright, [1,2] described a few symptoms related to the ear and Temporomandibular Joint (TMJ), which he grouped in term Costen syndrome, Bell [3] suggested Disorders (TMD).

Objectives: Analyze parameters which enable the evaluation of the severity of joint sounds during Electrovibratography (EVG): Amplitude Peak (AP) and Frequency Peak (FP); analyze the correlation between the data of EVG with Temporomandibular Disorder (TMD) severity given by Craniomandibular Index (CMI). Methods: 79 subjects with TMD were submitted to clinical examinations of the Research Diagno...

Reconstruction of the temporomandibular joint (TMJ) for congenital or acquired deformities is a major challenge for maxillofacial surgeons. The alternatives for reconstructing the TMJ include free grafts (costochondral, iliac crest, clavicle, or metatarsus), free flaps (fibula), osteogenic distraction, and alloplastic grafts. The lack of biological knowledge of cartilaginous grafts and their re...

Temporomandibular joint (TMJ) surgery can be divided into 3 types of surgery: Arthroscopy, arthroplasty, and total joint replacement. The complications associated with these procedures increase with complexity. They all include injury to adjacent structures, infections, and bleeding problems.

Temporomandibular joint (TMJ) is a complex, sensitive, and highly mobile joint. Temporomandibular disorders (TMD) are a class of degenerative musculoskeletal conditions associated with morphologic and functional deformities that affect up to 25% of the population. The most frequent structural (as opposed to muscular) cause of TMD are Internal derangement , which involves progressive slipping a ...