TMJ Dysfunction/anatomy

Question 1

EDS, stress, cervical pain, chronic pain comes along with

Answer 1

TMD

Question 2

What are the motions of the TMJ

Answer 2

laterotrusion
protrusion
retrusion
opening
closing

Question 3

Mastication – closing

Answer 3

• Temporalis
• Masseter
• M ptery (laterotrusion)

Question 4

Disc control by which muscle

Answer 4

• L ptery

Question 5

Postural/Supporting

Answer 5

• SCM
• Trapezius
  and sub occipitals

Question 6

to perform laterotrusion
CL muscles?
ipsilateral muscles?

Answer 6

ipsilateral muscles: masseter and temporalis
contralateral muscles: the pterygoids (medial and lateral)

Question 7

lateral movement of mandible
laterotrusion
arthrokinematics

Answer 7

ipsilateral: pivot/rotation
contalateral: anterior medial traslation

Question 8

opening arthrokinematics

Answer 8

first 20 mm = posterior roll/anterior glide
next 20 mm = anterior inferior translation

Question 9

closing arthrokinematics

Answer 9

first = posterior superior translation
second = anterior roll/posterior glide

Question 10

opening and closing involves 2 distinct motions each

Answer 10

true

Question 11

for oral hygiene what is required in regards to ROM

Answer 11

20 mm

Question 12

what are the norms for each motion

Answer 12

retrusion/retraction - 3 - translation

protrusion/protraction - 6 - translation

laterotrusion - 9 - ipsilateral pivot contralateral translation

opening - 40-50 roll/glide > translation

Question 13

what muscles involved in protrusion and retrusion

Answer 13

protrusion: anterior temporalis and the pterygoids
retrusion: posterior temporalis and the pterygoids

Question 14

what muscles involved in laterotrusion

Answer 14

contralateral pterygoids
ipsilateral masseter and temporalis

Question 15

from the trigeminal ganglion coming from cranial nerve 5 (V) where do the branches go into the face?

Answer 15

opthalimic towards the eyes top of head
maxillary towards the middle of the face
manibular branch towards the bottom of the face/jaw

Question 16

c0-c3
trigeminal
facial
glossopharyngeal
vagus
c1-4 spinal nerves

Answer 16

trigeminal nucleus which is responsible for crosstalk pain discomfort

cranial nerve is important