Abstract
Temporomandibular joint (TMJ) disorders (TMD) are characterized by disturbance of mouth opening, TMJ pain and noise (clicking). The involvement of dislocation and deformation of the disc and the formation of adhesive lesions in the TMJ cavity are characteristic of this disease. With the development of the small endoscope, arthroscopy is now used for both examination and treatment of TMD. We present arthroscopic laser surgery for TMD with a case of rheumatoid TMJ arthritis, with fibrous adhesion, dislocation and anterior disc displacement. The quartz fiber for the Nd:YAG laser was inserted through double-channel cannula into the cavity under the arthroscope. For fiber adhesion, the laser cauterizing was done for excision and cutting off of the adhesion part or the scar tissue. For dislocation and anterior disc displacement, cauterizing was done for the purpose of fresh wound formation on the retrodiscal synovial membrane. To ensure a posterior movement of the disc, suturing was done under the arthroscope. Concerning progress after the operation, excellent result was obtained and it was thought that use of laser with arthroscope was an extremely effective method.
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