TMJ and TMJ Special Tests

Question 1

Arthrology

Answer 1

Synovial joint with articular surfaces covered by dense fibrous connective tissue

Question 2

Articular disc composed of

Answer 2

dense fibrous connective tissue without blood vessels or nerves in pressure bearing areas

Question 3

Discal ligaments function to

Answer 3

restrict movement in sagittal plane

Question 4

Superior retrodiscal lamina (superior stratum) composed of

Answer 4

elastic connective tissue

counteracts forward pull of superior lateral pterygoid muscle on articular disc

Question 5

Retrodiscal pad consists of

Answer 5

loose neurovascular connective tissue

Question 6

Joint movement

Answer 6

Combination of hinge axis rotation in disc condyle complex and sliding movement of the upper joint

Question 7

Joitn mvoement - Fucntional opening, rotation and translatory glide

Answer 7

Opening - 40 mm
Rotation - 25 mm
Translatory glide - 15 mm

Question 8

TMJ compression special test - tests for what

Answer 8

Evaluates for pain with compression of retrodiscal tissues

Question 9

TMJ compression special test - how to perform

Answer 9

Pt sitting or supine
Support/Stablize head with one hand
Other hand pushes mandible sup, causing compression to TMJ