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Rheumatoid arthritis of the temporomandibular joint: subtypes
| Type | TMJ disease | TMJ symptoms | TMJ radiographic findings | Occlusal and facial features |
|---|---|---|---|---|
| I | Early adult | Continuous dull pain | Erosive changes | Normal |
| II | Advanced | Variable pain; crepitus | Gross erosive changes |
|
| III | Arrested | Often none | Loss of condylar shape |
|
| IV | Idiopathic | Variable symptoms | Flattened, shortened condylar stump |
|
