Background TNFR1 and TNFR2 are receptors for the pro-inflammatory chemokine TNFa. Inflammation of the temporomandibular joint (TMJ) and hypersensitivity were induced in mice lacking both TNFa receptors (TNFR1/R2 -/-). After recovery from this initial priming TMJ insult lasting less than a week, a gastrointestinal (GI) chemical irritation is administered 3 weeks later. This “double-hit” initiate...

OBJECTIVE To evaluate the morphological features of craniofacial structures in young patients affected by bilateral temporomandibular joint osteoarthrosis (TMJOA). METHODS Forty-three males and 189 females aged 15 to 25 years who had lateral cephalograms and temporomandibular joint (TMJ) radiological examinations were included. They were classified into a TMJOA group and a control group, acco...

OBJECTIVES The objective of this study was to compare temporomandibular joint (TMJ) findings from clinical examination and magnetic resonance imaging (MRI) for diagnosing anterior disc displacement. MATERIAL AND METHODS 114 subjects with at least one sign of temporomandibular disorders (tenderness/pain on palpation of the joints or muscles, TMJ sounds, pain or deviation during maximum mouth o...

Bony fusion between the mandibular condyle and skull base involves temporomandibular joint (TMJ) bony ankylosis. This condition might originate from trauma, infection, or systemic disease. TMJ adhesion can develop after synovial damage. Both TMJ ankylosis and adhesion lead to functional impairment and pain. Here, we present a case of a 50-year-old female who had bony ankylosis of the right TMJ ...

OBJECTIVE To compare the prevalence of tinnitus in temporomandibular disorder (TMD) patients affected by either jaw muscle pain, temporomandibular joint (TMJ) internal derangements, or TMJ arthrosis. METHODS The presence of self-reported tinnitus was assessed in 250 consecutive TMD patients and correlation analysis was performed with clinical TMD signs and symptoms. RESULTS Tinnitus prevale...

Temporomandibular disorders embrace a number of clinical conditions that involves the masticatory musculature, temporomandibular joint (TMJ) and associated structures. The most frequent cause of TMJ disorders are disc derangement disorders which involve progressive slipping or displacement of articular disc. Various conservative treatment strategies for disc derangement disorders includes pharm...

When diagnosing patients with temporomandibular disorder (TMD) symptoms, the possibility of unusual causes must be considered, including neoplastic disorders, as well as infections and inflammatory disease. Therefore, radiologic examination may prove to be invaluable in the differential diagnosis of TMDs. This article describes a patient whose temporomandibular joint (TMJ) noise was initially d...

Management of temporomandibular joint (TMJ) ankylosis is challenging for the oral and maxillofacial surgeon because it involves the mouth opening, dentofacial deformity, diet problem, and quality of life. Although surgical techniques to treat TMJ ankylosis have improved, reankylosis is a persistent problem. The temporalis myofascial flap provides good material for interpositional arthroplasty, ...

We report a case of calcium pyrophosphate dihydrate (CPPD) arthropathy with condylar destruction of the temporomandibular joint. Diagnosis was made on the basis of clinical findings and x-ray evidence of severe destruction of the condyle. The most likely diagnosis was considered to be neoplasm and a secondary infection of the left TMJ. Review of sections of the condyle taken at operation confir...

Temporomandibular joint (TMJ) sounds are generated from the two joints holding the lower jaw and the temporal bone (the skull) in patients suffering from temporomandibular disorder (TMD). In this study, we shall show how the inherent fractional delay between a pair of TMJ sources can be estimated by time localised sparse component analysis. In effect, the active periods of one of the sources wi...