Table 3.

Criterion Examiner Expanded TMD Taxonomy

I. Muscle Disorders
I.a.	Myofascial Pain
I.a.1	Myofascial Pain with Referral
I.b.	Myofascial Pain with Limited Opening
I.b.1	Myofascial Pain with Referral with Limited Opening
I.c.	Muscle Spasm
I.d.	Myositis
I.e.	Muscle Contracture
II. Disc Displacements
II.a.	Disc Displacement with Reduction
II.a.1	Disc Displacement with Reduction with Intermittent Limited Opening
II.b.	Disc Displacement without Reduction with Limited Opening
II.c.	Disc Displacement without Reduction without Limited Opening
III. Arthralgia, Arthritis, Arthrosis
III.a.	Arthralgia (Synovitis)
III.a.1	Capsular Ligamentous Sprain
III.b	Osteoarthritis
III.c.	Osteoarthrosis
IV. Uncommon Temporomandibular Disorders
IV.a.	Dislocation
IV.b.1	Fibrous Ankylosis
IV.b.2	Bony Ankylosis
IV.c.	Pigmented Villonodular Synovitis
IV.d.	Chondromatosis
IV.e.	Idiopathic Condylar Lysis
IV.f.	Subcondylar Fracture
IV.g.	Neoplasms
V. Rheumatic Disorders
V.a.	Rheumatoid Arthritis with concurrent involvement of the TMJ
V.b.	Juvenile Rheumatoid Arthritis with concurrent involvement of TMJ
V.c.	Miscellaneous rheumatic diseases with potential concurrent TMJ involvement
V.d.	Fibromyalgia with concurrent involvement of masticatory muscles
VI. Tension-Type Headaches
VI.a.	Infrequent episodic tension-type headache associated with the temporalis muscle
VI.b.	Episodic tension-type headache associated with the temporalis muscle
VI.c.	Chronic tension-type headache associated with the temporalis muscle