Bilateral asymptomatic fibrous-ankylosis of the temporomandibular joint associated with rheumatoid arthritis: a case report

Brazilian Dental Journal

Carolina Ortigosa Cunha²  Lívia Maria Sales Pinto²  Luana Menezes De Mendonça²  Aline Dantas Diógenes Saldanha²  Ana Cláudia De Castro Ferreira Conti¹  Paulo César Rodrigues Conti² 

[1] ,University of São Paulo Bauru Dental School Department of ProsthodonticsBauru SP ,Brazil

关键词: ankylosis;    temporomandibular joint;    mouth opening limitation;    rheumatoid arthritis;   

DOI  :  10.1590/S0103-64402012000600025

来源: SciELO

【 摘 要 】

The American Academy of Orofacial Pain (AAOP) defines ankylosis of the temporomandibular joint (TMJ) as a restriction of movements due to intracapsular fibrous adhesions, fibrous changes in capsular ligaments (fibrous-ankylosis) and osseous mass formation resulting in the fusion of the articular components (osseous-ankylosis). The clinical features of the fibrous-ankylosis are severely limited mouth-opening capacity (limited range of motion during the opening), usually no pain and no joint sounds, marked deflection to the affected side and marked limitation of movement to the contralateral side. A variety of factors may cause TMJ ankylosis, such as trauma, local and systemic inflammatory conditions, neoplasms and TMJ infection. Rheumatoid arthritis (RA) is one of the systemic inflammatory conditions that affect the TMJ and can cause ankylosis. The aim of this study is to present a case of a female patient diagnosed with bilateral asymptomatic fibrous-ankylosis of the TMJ associated with asymptomatic rheumatoid arthritis. This case illustrates the importance of a comprehensive clinical examination and correct diagnosis of an unusual condition causing severe mouth opening limitation.

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