Aplasia
Congenital or developmental disorders Hypoplasia
Hyperplasia
Dysplasia
Acquired disorders Neoplasms
Disorders disc derangement Disc displacement with reduction
Disc displacement without reduction
TMJ dislocations (dislocations)
Inflammatory disorders Synovitis / capsulitis
Polyarthritis
Noninflammatory disorders Primary osteoarthritis
Secondary osteoarthritis
Anchylosis
Fracture (condyle)
Table 1: Classification diagnostic proposed by AAOP