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MM III > TMD > Flashcards

TMD Flashcards

1
Q

Is the articular disc innervated?

A

NO! (cannot feel pain from the disc)

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2
Q

what mm are responsible for depression of the mandible (opening)?

A
  1. suprahyoid mm
  2. lateral pterygoid
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3
Q

what mm are responsible for elevation (closing) of the mandible?

A
  1. masseter
  2. temporalis
  3. medial pterygoid
  4. buccinator
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4
Q

what mm are responsible for lateral excursion?

A

ipsilateral temporalis, contralateral lat pterygoid

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5
Q

what are norm values for depression (opening)?

A

40-45 mm

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6
Q

what are norm values for lateral excursion?

A

10-12mm bilat

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7
Q

what are norm values for protrusion

A

5-10 mm

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8
Q

what are norm values for overbite?

A

2-3 mm

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9
Q

what are norm values for overjet?

A

2-3mm

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10
Q

when opening your mouth, the first 15-25 mm is primarily ____ motion of the condyle in the ____ joint space

A

rotational

inferior

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11
Q

The second phase of opening is primarily ____ motion in the ____ joint space

A

translatory gliding

upper

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12
Q

how does FHP impact mandible position?

A

more retruded position

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13
Q

When observing facial symmetry, you notice that the pt’s eye and angle of mouth are elevated on same side. Is this likely a craniovertebral or a craniomandibular problem?

A

craniovertebral/craniocervical

(think peyton manning - has had many neck surgeries)

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14
Q

When observing facial symmetry, you notice that the pt’s eye and angle of mouth are elevated on opposite sides. Is this likely a craniovertebral or a craniomandibular problem?

A

Craniomandibular

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15
Q

What are the 3 classifications for TMD pn?

A
  1. Muscle disorders
  2. Disc displacements
  3. Joint displacements
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16
Q

What are the key findings for a pt who fits in the MUSCLE DISORDER group?

A
  1. multiple trigger pts of masticatory & upper CS mm (lateral pterygoid = most commonly involved mm in TMD cases)
  2. full AROM
  3. S-shaped
  4. pn w/ biting on ipsilateral side
  5. no jt sounds
17
Q

What are the key findings for a pt who fits in the JOINT DISORDER group?

A
  1. pn w/ palpation of multiple jt structures (rocabado pain map)
  2. reduced AROM
  3. C or J shaped
  4. Pn w/ biting on contralateral side
  5. often joint sounds
18
Q

What are the key findings for a pt who fits in the DISC DISORDER group?

A

presence of disc displacement is easy to ID, hard to dx specifically

  1. joint sounds/ palpable click in jt(s)
  2. pn w/ resisted mouth opening strongly points to non-reducing disc (doesnt click self back into place)

MM III (3 decks)

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