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CATA 437 final exam > TMJ > Flashcards

TMJ Flashcards

1
Q

70% of TMJ disorders involve what

A

mal positioning of the disc (internal derangement)

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2
Q

Primary pathology at TMJ

A

OA

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3
Q

TMJ is what type of joint

A

Modified ball and socket
synovial joint

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4
Q

Runs behind the TMJ
Blood supply to dura

A

Middle Meningeal artery

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5
Q

Muscles of the TMJ

A

Temporalis
Masseter
Pterygoid
Hyoid muscles
SCM
Platysma

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6
Q

covers the lateral area like a fan
a powerful muscle in biting

A

temporalis

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7
Q

a main muscle involved in chewing

A

masseter

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8
Q

when both sides work together, they push chin out and/or depress the chin.
unilaterally they produce the side to side chin movements

A

lateral pterygoid

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9
Q

helps to elevate and close the jaw. working together they protrude the mandible, working unilaterally it produces a grinding motion

A

medial pterygoid

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10
Q

biomechanics - opening

A

anterior roll and anterior glide of the condyle

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11
Q

biomechanics - closing

A

posterior roll and posterior glide

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12
Q

does the TMJ follow convex/concave rule?

A

non

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13
Q

normal opening of the mouth is

A

35-55mm or 2-3 fingers in the mouth

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14
Q

normal daily use of the TMJ requires

A

25-35 mm

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15
Q

Specific history questions

A
  • grinding teeth
  • clicking/locking/popping
  • pain with functional movement of jaw
  • recent dental work
  • surgeries
  • medical conditions - lymph node swelling, tonsillitis, sinus infections
  • hearing and balance issues
  • headaches
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16
Q

Profile of a mouth breather

A

tired eyes
restless sleep and snoring
set back jaw
leaning forward
poor head posture
narrow palate
lower Co2 and oxygenation
higher BP
stress activation

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17
Q

profile of a nose breather

A

alert eyes
jaw and cheekbone definition
deeper sleep
higher CO2
parasympathetic relaxation
wide palate
spine support
good tongue posture
lower BP
alpaca whisperer

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18
Q

Stages of internal derangement - name them

A

normal
ID-reducing
ID-non-reducing

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19
Q

normal internal derangement

A

normal anatomical position of articulating disc with respect to condyle and surfaces of articulation

20
Q

ID-reducing

A

anteriorly displaced disc returning to normal position upon maximal opening
stage II - early stage III

21
Q

ID non-reducing

A

anteriorly displaced disc during closed and maximal opening positions with disc thickening present
Stage III - stage IV

22
Q

sounds heard for ID reducing vs non reducing

A

reducing will hear more clicking/popping
non-reducing will hear more grinding from rubbing

23
Q

Wilkes 5 stages to classifying ID - Stage I

A

painless clicking in early opening and late closing unrestricted motion

24
Q

Wilkes 5 stages to classifying ID - Stage II

A

occasional pain with clicking, intermittent locking, orofacial pain

25
Q

Wilkes 5 stages to classifying ID - Stage III

A

frequent orofacial pain, as locking becomes more frequent and mandibular becomes restricted

26
Q

Wilkes 5 stages to classifying ID - Stage IV

A

contours begin to change, chronic pain and restricted mandibular opening

27
Q

Wilkes 5 stages to classifying ID - Stage V

A

similar to stage 4 but with more severe symptoms (chronic pain, crepitus, significant ROM restrictions)

28
Q

trigeminal neuralgia vs TMJ dysfunction

A

trigeminal neuralgia is unilateral/acute and stabbing pain/no pain at night/short burst of pain

vs

TMJ dysfunction is bilateral pain/continuous and dull/pain present at night/long lasting duration

29
Q

Pain is at temples, in front of ears

A

TMJ

30
Q

Pain is behind browbone and/or cheekbones

A

Sinus

31
Q

Pain is in and around one eye

A

Cluster

32
Q

Pain is like a band squeezing the head

A

Tension

33
Q

Pain, nausea and visual changes are typical of classic form

A

Migraine

34
Q

Pain is at the top and/or back of head

A

Neck

35
Q

which 2 types of pain/location are more cervicogenic

A

tension and neck

36
Q

Bell’s Palsy

A

damage or inflammation of the CN VII (facial)
sudden paralysis of one side of your face

37
Q

S/S of Bell’s palsy

A

drooling
eye problems
loss of ability to taste
pain in or behind your ear
numbness in the affected side of your face
increased sensitivity to sound

38
Q

TMJ functional movement

A

biting
chewing
swallowing
coughing
talking

39
Q

2 causes of restricted opening when ROM testing

A

muscle spasm
disc displacement

40
Q

Crepitus of the TMJ could indicate what 2 things

A

possible OA
possible disc displacement

41
Q

what is Chvostek’s sign

A

tap the parotid gland overlying the masseter muscle
+ive = facial muscle twitch

42
Q

chvostek’s sign is used for what

A

to help determine if there is a pathology of the 7th cranial nerve (facial)

43
Q

Cervical spine affecting TMJ - flexion

A

posterior neck muscles tighten and mandible gets pulled up and forward

44
Q

Cervical spine affecting TMJ - extension

A

the mandible gets pulled down and backward

45
Q

what can you make your patient do to verify is the cervical spine is affecting the TMJ

A

can they do full neck flexion and extension with the mouth closed

CATA 437 final exam (6 decks)

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