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5th - OD - TMD > TMD - Uncommon Disorders > Flashcards

TMD - Uncommon Disorders Flashcards

1
Q

Examples of uncommon disorders cause issue TMJ?

A

Trauma/ dislocation
Osteoarthritis
Infective arthritis
Trismus

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2
Q

What is osteoarthritis?

A

Degenerative arthritis - degenerative joint disorder

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3
Q

How does osteoarthiritis present?

A

Painful inflammatory erosive phase last 3 years following period of resolution

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4
Q

Clinical features of osteoarthritis?

A 
Pain centred on joint 
Tender joint
Crepitus 
Limited ROM
Radiological signs
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5
Q

Tx of osteoarthritis?

A

Splints
NSAIDs
Athrocentesis

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6
Q

What is infective arthirtis?

A

Rare disorder cause by bacteria

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7
Q

What can infective arthritis cause which needs to be tx immediately?

A

Infection middle cranial fossa

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8
Q

Clinical features infective arthriris?

A 
Pyrexia
Restricted opening 
Suppuration
Erythema
Swelling
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9
Q

Tx of infective arthriits?

A

AB and drainage

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10
Q

What expect in normal opening?

A

> 40mm

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11
Q

What is trismus?

A

Limited opening - less 15mm

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12
Q

What are causes of trismus?

A

Extracapsular
Intracapsular
Pseudo-ankylosis
Ankylosis

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13
Q

What are extracapsular causes of trismus?

A

Trauma = fibrosis
Infection
Tumour
Inflammation

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14
Q

What are intracapsular causes of trismus?

A

Infection
Systemic arthritis
Tumours
Synovial chondromatosis

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15
Q

What causes pesudo-ankylosis?

A

Mechanical interference of opening

e.g Zygomatic fracture

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16
Q

What is anklyosis?

A

Bony union

17
Q

Checklist of trismus?

A

Opening less 15mm
Progressive worsening
Absence hx of clicking
Pain non-myofascial origin

18
Q

What see if dislocation in TMJ?

A

Large open bite and inability to get teeth occlude

19
Q

What see radiograph of disclocation?

A

Condyle head forward of eminence

20
Q

How tx recurrent dislocation?

A

Physiotherapy - strengthen muscle prevent dislocation
Botox
Surgical

21
Q

Examples of inflamamtory arthritis?

A 
Rheuamatoid
Psoriatic 
SLE
Ankylosising spondylitis
Gout

5th - OD - TMD (4 decks)

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