The role of systemic hypermobility and condylar hypermobility in temporomandibular joint dysfunction syndrome

• Published in: Rheumatology international 2006, Vol.26 (3), p.257-260
• Main Authors: KAVUNCU, Vural, SAHIN, Sezai, KAMANLI, Ayhan, KARAN, Ayse, AKSOY, Cihan
• Format: Article
• Language: English
• Subjects: Adult; Biological and medical sciences; Case-Control Studies; Diseases of the osteoarticular system; Facial bones, jaws, teeth, parodontium: diseases, semeiology; Female; Humans; Joint Instability - complications; Male; Masticatory Muscles - abnormalities; Medical sciences; Miscellaneous. Osteoarticular involvement in other diseases; Non tumoral diseases; Otorhinolaryngology. Stomatology; Temporomandibular Joint Disorders - diagnosis; Temporomandibular Joint Disorders - etiology
• ISSN: 0172-8172; 1437-160X
• DOI: 10.1007/s00296-005-0620-z

To evaluate the risk of temporomandibular joint dysfunction (TMD), when both systemic joint hypermobility (SJH) and localized condylar hypermobility (LCH) exist. Sixty-four consecutive outpatients with temporomandibular joint clicking or pain, and 77 sex- and age-matched control subjects, were recruited in the study. LCH was diagnosed when condylar subluxation was present, and SJL was diagnosed by using Beighton's method. The frequency of symptoms, mean mouth opening, and the frequency of subjects with SJL and LCH were the main outcome measures. Out of the 64 patients, 16 patients were suffering from pain, 20 patients from joint-clicking and 28 patients from both. Both SJH and LCH were more frequently observed in those patients with TMD than in control subjects. The risk of TMD was higher if LCH and SJH existed jointly. Both systemic and localized hypermobility may have a role in the etiology of TMD.