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Occlusion: Anna and Diewitt > Occlusion Test 1: SLIDES 18- 34: DIEWITT > Flashcards

Occlusion Test 1: SLIDES 18- 34: DIEWITT Flashcards

1
Q
  1. Intercuspal positions

Where does the Distal cusp of the mand. first molar reside/occlude/situate with the opposing arch?

A

Distal fossa of the Max First Molar

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2
Q
  1. Intercuspal Positions

Where does the Mesiolingual cusp of Max 2nd Molar reside/occlude/situate with the opposing arch?

A

Central fossa of the Mand. 2nd Molar

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3
Q
  1. Pathways of Max Cusps Positioned over Mand Teeth

- Protrusion is parallel to what and travels in which direction?

A

Protrusion

  • Parallel to central groove
  • Travels posteriorly
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4
Q
  1. Pathways of Max Cusps Positioned over Mand Teeth

- “Working” - Parallel to what and travels in which direction?

A

Working

  • Parallel to lingual groove
  • Travels towards tongue
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5
Q
  1. Pathways of Max Cusps Positioned over Mand Teeth

- “Non-Working” - Parallel to what and travels in which direction?

A

Non-Working

  • Parallel to distofacial groove on first molar
  • Travels diagonally towards condyle
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6
Q
  1. Pathways of Max Cusps Positioned over Mand Teeth

- “Lateral Protrusive” - Located at what angle and between what two movements?

A

Lateral Protrusive

- Located at a 45 degree angle between protrusion and working movements

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7
Q
  1. Lingual cusp of Max left 2nd Pre-molar

- Where does this cusp “escape” or move during left lateral working movements?

A

Out lingual embrasure between mand second premolar and mand first molar

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8
Q
  1. Which movements that we have seen with the mandible are the best example of translation?
    - (Lateral protrusive, non-working, protrusion, or working)
A

Protrusive is the best example of translation (movement of a body in the same direction and at the same rate)

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9
Q
  1. Terminal Hinge Axis
    - Terminal hinge operates with what kind of movement?
    - The condyles are ___ completely within the ___ fossa.
    - This movement is consistent and ___.
A
  1. Rotational movement (from centric relation to terminal hinge axis position)
  2. Rotating completely; glenoid
  3. Reproducible
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10
Q 
23. Border Movements in Sagittal Plane
Which points are the: 
 - Most anterior position?
 - Most inferior?
 - Most superior?

(CR, ETE, HA, HAT, HA-MO, MI, MO, MOA, or MP)

A
  1. Max Protrusion (MP)
  2. Max Opening (MO)
  3. Max Intercuspation (MI)
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11
Q
  1. Border Movements in Sagittal Plane
    - At which of the following points will tooth contact occur?
    (CR, ETE, HA, HAT, HA-MO, MI, MO, MOA, or MP)
A

CR (centric relation), MI (max intercuspation), ETE (edge to edge incisal), and MP (max protrusion)

The rest do not have tooth contact

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12
Q
  1. Funct. Range in Horizontal Border
    - As the mandible opens, the size of the ___ plane border ___ (increases/decreases) until it reaches a “point” at the ___(max/min) opening position
A
  1. Horizontal plane border
  2. Decreases
  3. Maximum
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13
Q
  1. Border Movements in Frontal Plane
    - Which positions exhibit tooth contact?

(ERL, ELL, MI, MO, and RP)

A

ERL (extreme right lateral), ELL (extreme left lateral), and MI (max intercuspation

(No tooth contact at RP or MO; Chewing loop not included)

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14
Q
  1. Mand Movement at Condylar level
    - Horizontal plane at Mand central incisors
    - What four positions can be seen?
    (Choose from CR, LL, MO, MP, PRP, RL, and terminal edge)
A

CR (centric relation), LL (left lateral), MP (max protrusion), and RL (right lateral)

Cannot see MO, PRP, Chewing Loop, or Terminal Edge

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15
Q
  1. Mand Lateral Translation (Benneth Movement and Immed. Sideshift)
    - This is the ___ part of lateral movement of the mandible,
  2. This is depicted when the medial pole of ___ starts to travel down the slope of the ___ and against the ___.
A
  1. First part

2. Medial pole of the non-working condyles. Articular eminence; against the medial wall of the glenoid fossa

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16
Q
  1. Mand Lateral Translation is aka. _____ and _____
  2. This movement is exhibited as a measurement between the ___ and the ___.
  3. This movement is only measured on the ___ (working or non-working) side.
A

Aka: Benneth Movement and Immed. Sideshift

  1. Medial pole of the non-working condyle and the medial wall of the glenoid fossa
  2. Non-working side
17
Q
  1. Define Condylar Guidance Angle

(“It is the angle between the ___ and the ___.”)

A

The angle between the condylar pathway and the horizontal plane

18
Q
  1. Condylar Guidance Angle
    - As the condyle moves out of ___ relation and descends along the ___, the rate at which it moves inferiorly depends on the ___ of the eminence
A
  1. Centric
  2. Articular Eminence
  3. Steepness or Flatness
19
Q
  1. Condylar Guidance Considerations
    - Temporomandibular joints are the ___ (anterior/posterior) controlling factors of mand movement
    - Condyles are considered to be ___ (fixed/adjustable)
A
  1. Posterior

2. Fixed

20
Q
  1. Condylar Guidance Considerations
    - The ___ wall of the mand fossa is generally ___ (shallower/steeper) than the articular eminence. It is also a controlling factor contributor for the ___ (working/non-working) condyle or the ___ condyle
A
  1. Medial wall
  2. Steeper
  3. Non-working condyle
  4. Translating/Orbiting condyle
21
Q
  1. Horizontal Overlap Change
    - As Horizontal Overlap increases, the anterior guidance angle ___ (increases/decreases).
  • An increase in Horizontal Overlap results in ___ (more/less) vertical displacement the mandible and flatter ___.
A
  1. Decreases
  2. Less
  3. Posterior cusps
22
Q
  1. Coordinated Controlling factors of Movement
    - What does PCF and ACF stand for?
  • Since the PCR’s and ACF’s are causing the mandible to move horizontally and vertically at the ___ (same/different) rates, every point on the mandible is also moving away from the horizontal reference plane (HRP) at the ___ (same/different) rate.
A
  1. ACF/PCF - Anterior/Posterior Controlling Factors
  2. Same
  3. Same
23
Q
  1. Distance of Tooth from Working Condyle
    - The greater the distance of the tooth from the working condyle (axis of rotation), the ___ (wider/smaller) the angle formed by the ___ and ___ pathways
A
  1. Wider

2/3. Laterotrusive and mediotrusive pathways

24
Q
  1. Effect of Intercondylar Distance on Ridge and Groove Direction
    - The greater the intercondylar distances, the ___ (greater/smaller) the angle formed by the ___ and ___ pathways.
A
  1. Smaller angle

2/3 Laterotrusive and mediotrusive pathways

Occlusion: Anna and Diewitt (6 decks)

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