TMJ

Question 1

opening mouth

Answer 1

• 35-55mm
• LALALA
• lateral pterygoid

Question 2

closing mouth

Answer 2

• MMT
• masseter, medial pterygoid, temporalis

Question 3

protrusion of mandible

Answer 3

• 7mm
• medial and lateral pterygoid

Question 4

retraction of mandible

Answer 4

• 3-4mm
  temporalis (posterior fibers)

Question 5

lateral deviation of mandible

Answer 5

• 10-15mm
  medial and lateral pterygoid (contralateral)

Question 6

disk displacement with reduction

Answer 6

• pop/click with opening and closing
• palpating over lateral poles - can feel opening click (reduction of disk)
• can feel closing click (disc displacing anterior to comdyle)

Question 7

hypomobility

Answer 7

decreased ROM with NO pain

Question 8

synovitis

Answer 8

pain, and limited mouth opening
- inflammation of synovium
- NO mouth deviation

Question 9

capsulitis

Answer 9

• would have capsular pattern: limited mouth opening with mouth deviation