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5th - OD - TMD > TMD - Diagnostic Classification > Flashcards

TMD - Diagnostic Classification Flashcards

1
Q

How can common causes TMD issues be split?

A

Musculature
Articular disc - disc disorder
Mixed diagnosis

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2
Q

What is TMD disorder defined as?

A

Collective term for number clinical problems involving masticatory muscle, tempromandibular joint and associated structured

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3
Q

What are muscle of mastication innervated by?

A

Mandibular division trigeminal nerve

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4
Q

Examples of masticatory muscle disorders?

A

Myalgia

  • Local myalgia
  • Myofascial pain w/ or w/o referral
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5
Q

What muscles are often affected during musculature pain?

A

Large closing muscle - temporalis/ masseter

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6
Q

Signs/ symptoms of masticatory muscle disorders?

A

Familiar pain in muscle on function/ parafunction or palpitation

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7
Q

Examples of true tempormandibular joint disorders?

A

Arthralgia
Disc disorders
Degenerative joint disease
Subluxation

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8
Q

What is arthralgia?

A

Joint pain in TMJ

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9
Q

What are types of disc disorder?

A

Disc displacement w/ reduction
DD + R w/ intermittent locking
DD - R w/ limited opening
DD - R w/o limited opening

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10
Q

How diagnose degenerative joint diease?

A

Panoramic imaging - OPT

CT gold standard

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11
Q

What causes TMJ subluxation?

A

TMJ hyper-mobility causes condyle subluxation - goes beyond eminence

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12
Q

What is myofasical pain w/ referral ?

A

Pain beyond boundary of muscle being palpated

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13
Q

How can referred pain in myofascial pain present?

A

Toothache, headache, earache

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14
Q

Most common disc disorder?

A

DD + R

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15
Q

What is DD+R?

A

Disc displacement w/ reduction

Disc position isn’t maintained on condyle throughout range of movement

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16
Q

Where is disc positioned in DD+R?

A

Disc is anteriorly displaced

17
Q

What happens to disc on opening in DD+R?

A

The disc reduces - normally during midrange = hear click

18
Q

What happens to disc on closing in DD+R?

A

Disc displaced anterior

19
Q

What movement pattern expect in DD+R?

A

Ipsilateral deviation w/ opening which corrects - caused disc being infront of condyle initially but then returns to condyle

20
Q

Sign/ symptoms DD+R?

A

TMJ clicking on function and movement

Familiar pain TMJ

21
Q

What is DD+R w/ intermittent locking?

A

Disc still displaced anteriorly

During opening jaw becomes locked as disc no longer relocates onto condyle

22
Q

What see in pt w/ DD+R w/ intermittent locking?

A

Will have jaw manoeuvre - here click as disc returns to condyle

23
Q

What is DD - R?

A

Progression disease
No reduction - disc no longer relocates to condyle instead folds in front of condyle
During opening no reduction of displaced disc

24
Q

What see on condylar head in DD-R?

A

Condylar head abnormal w/ thinning of articular cortex

25
Q

What two types of DD-R?

A

w/ OR w/o limited opening

26
Q

What symptoms see DD-R?

A

Limited mouth opening
Limited contralateral excursion
Familiar pain TMD

27
Q

When see DD-R w/o limited opening?

A

Chronic phase - joint become stretched allowing nearlly full ROM

28
Q

What movement pattern see in DD-R?

A

Ipsilateral deviation which doesn’t correct itself - disc remains infront of condyle

29
Q

What is common to see in DD-R?

A

Limited opening

30
Q

When more likely see DD-R w/o limited opening?

A

When capsule and ligaments have stretched allow ROM

Takes months - years

31
Q

What expect to see on OPT degenerative joint disease?

A

Joint space narrowing
Subchondrial scelorisis - increased opactiy
Subchondiral cyst and erosiosn

32
Q

Sign and symptoms of joint degeneration?

A

Limited ROM/ opening
Crepitus on function
Familia pain

33
Q

Signs/ symptoms of subluxation?

A

TMJ clicking
Lock wide-open position
Excessive mouth opening

34
Q

Difference between subluxation and luxation?

A

Subluxation - pt able to reduce dislocation

Luxation - require interventional reduction

35
Q

What is excessive mouth opening?

A

> 50mm

5th - OD - TMD (4 decks)

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