Temporomandibular disorders in patients with rheumatoid arthritis: A clinical study

Abstract

There was a high prevalence of TMD in RA patients, and muscular involvement was the highest among the TMJ involvements. Thus, this study supports TMJ examination should be encouraged in the rheumatology settings.

Differences in masseter activity in patients with and without self-reported rheumatoid arthritis using surface electromyography: A cross-sectional study

“…Our sample represents adults between 20 to 60 years of age with non-severe rheumatoid arthritis or non-severe temporomandibular symptoms related to severe rheumatoid arthritis. We consider that the increase in RMS activity in patients with rheumatoid arthritis could be observed in patients with non-severe symptoms or as an onset of muscular disturbance, and muscular hyperactivity could be a first sign before a chronic muscular disturbance takes place [7,2,25,9]. Our results show a decreased rate of muscular activity with age and a decreased rate during the evaluated period in rheumatic patients.…”

“…However, previous studies report muscular weakness as a frequent characteristic in patients with rheumatoid arthritis [4,8,15,7,11) Pain [5,17,6,10,9,22) and trigeminal motor neuropathy [4] are the principal factors associated to masticatory muscle weakness. Notwithstanding, previous findings have also reported severe signs of condylar head µV (IC95% -1.0; -0.9, p<0.001) over the 30 second period.…”

“…Muscular alterations are frequently described in patients with temporomandibular disorders [8,9] and have been related to alterations in facial growth in young patients [10,11,12]. Muscular activity is important for several procedures in dentistry, but few studies included electromyography examination (EMG) [4,13,14] most used radiographs [4,8,15,9,16] CT scans [4,17,8,10] surface thermography [4] and inflammatory markers [10,12,18] to evaluated rheumatoid arthritis characteristics. Alterations in muscular activity were described by using root mean square (RMS) voltage of the EMG examination of masticatory muscles in patients with rheumatoid arthritis [4,13,14].…”

An unusual and severe presentation of rheumatoid arthritis in the temporomandibular joint

“…This suggests through and through erosion, with a communication between the mastoid air cells and intracranial space (Figs. [3][4][5].…”

“…It can also be subject to iatrogenic damage, trauma, infection, gout or autoimmune disorders such as, psoriasis and rheumatoid arthritis 2 . Rheumatoid arthritis (RA) is an autoimmune disorder which leads to generalised chronic inflammation and synovial hyperplasia 3 . While RA of the TMJ is widely acknowledged, the incidence can range between 2% and 88% [4][5][6][7][8][9][10] .…”