[Temporomandibular joint osteoarthritis: recognizing and challenging].

Temporomandibular joint osteoarthritis is an ancient and challenging common disease in clinic. The challenge is clarifying the relationship among temporomandibular joint osteoarthritis, temporomandibular joint osteoarthrosis and temporomandibular disorders, understanding mutual influence among all bony structures' pathological lesions in the joint and exploring pathogenesis, making early diagnosis and accurate diagnosis, and giving effective and standard treatment.