TMJ disorders Flashcards

1
Q

The joint surface of the TMJ is made up of ___.

A

fibrocartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Area of load-bearing within the TMJ is affected by what?

A
  1. congruity of contacting tooth surfaces
  2. head position/posture
  3. coordination of muscle function
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Lower or upper cavity? Where spin/rotation of the condyle occurs.

A

lower cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Lower or upper cavity? Where translation/gliding of the disc and condyle along the fossa occurs.

A

upper cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What muscles are responsible for working together BILATERALLY to raise the mandible while closing the mouth?

A

masseter
medial pterygoid
temporalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What muscles are responsible for working together to depress the mandible while opening the mouth?

A

lateral pterygoid
diagastric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Origin of the temporalis.

A

temporal fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

insertion of the temporalis.

A

anterior border of the coronoid process
ramus of the mandile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Action of temporalis.

A

assists with closing the mouth
side/side grinding of teeth
stability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

origin of the superficial layer of the masseter.

A

anterior portion of the lower order of zygomatic arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

origin of the deep layer of the masseter.

A

medial surface of the zygomatic arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

insertion of the masseter.

A

blend with the medial pterygoid and then inserts on the coronoid process, ramus, and angle of the mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Action of the masseter.

A

elevates mandible when closing the mouth bilaterally
ipsilateral lateral deviation of the mandible (when acting indiv.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

origin of medial pterygoid

A

medial aspect of the mandibular ramus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

insertion of the medial pterygoid

A

posterior aspect of the angle of the mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

action of the medial pterygoid

A

closes the mouth bilaterally
deviate mandible to the contralateral side individually

17
Q

Origin of the superior division of the lateral pterygoid.

18
Q

action of superior division of lateral pterygoid

A

assists with chewing
rotates the disc ANTERIORLY on the condyle during closing of the mouth

19
Q

origin of the inferior division of the lateral pterygoid

A

lateral pterygoid plate

20
Q

action of the inferior division of the lateral pterygoid

A

assists with opening the mouth
protrudes the mandible
contralateral lateral deviation

21
Q

insertion of lateral pterygoid

A

neck of mandible condyle
capsule of TMJ

22
Q

TMJ arthrokinematics of mouth opening, contralateral deviation, and PROT

A

mandible rolls anteriorly
glides anteriorly, inferiorly, and laterally with the disc

23
Q

TMJ arthrokinematics of mouth closing, ipsilateral deviation, and RET

A

mandible rolls posteriorly
glides anterior, inferiorly and laterally with the disc

24
Q

open packed position of the TMJ.

A

mouth slightly open, lips together, teeth are NOT in contact

25
close packed position of TMJ
mouth closed with teeth clenched
26
Who does TMJ disorders affect more?
women >55 y/o
27
s/s of TMJ disorders
- jaw pain - HA - ear ache - neck pain - clicking/popping with mouth movement - lock jaw
28
What are the categories of TMJ disorder?
- myofascial - traumatic - arthrogenic - neurogenic
29
definition: - pain around the TMJ without pathology of the joint - hypertonicity of the masseter, temporalis, medial/lateral pterygoid
myofascial TMD
30
What are contriuting factors of myofascial TMD?
dental occulation neuroendocrine factors genetics stress
31
S/s of myofascial TMD.
agg w/ chewing, swallowing, speaking, and facial expression
32
definition: issue within the TMJ
athrogenic TMD
33
What are the contributing factors of arthrogenic TMD?
hypo/hypermobility, disc displacement, OA
34
s/s of arthrogenic TMD
- jaw pain - difficulty opening/closing mouth - clicking/popping/clunking sensations
35
definition: - trigeminal, laryngeal, and glossopharyngeal neuralgia
Neurogenic TMD
36
What are the contributing factors of neurogenic TMD?
upper c-spine dysfunction
37
s/s of neurogenic TMD.
unpredictable episodes of sharp, stabbing facial and/or jaw pain
38
What joint mobilizations help to improve opening the mouth?
distraction anterior glide lateral stretch
39
What joint mobilizations help to improve closing the mouth?
extraoral lateral glides extraoral depression