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CATA 437 final > 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

no

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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

Wilkes 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 frontal bone 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 symptoms of a classic form of:

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

Damage of the Facial Nerve (CNVII)

Test: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 if the cervical spine is affecting the TMJ

A

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

CATA 437 final (5 decks)

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