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Dental Anatomy > Occlusion > Flashcards

Occlusion Flashcards

1
Q

What class of levers is the fulcrum between the effort and the load?

A

Class 1

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2
Q

What class of levers is the load between the effort and the fulcrum?

A

Class 2

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3
Q

In what class of levers is the effort between the fulcrum and the load?

A

Class 3

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4
Q

Every maxillary tooth is more … than its opposing counterpart.

A

distal

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5
Q

What is the only maxillary tooth with 1 opposing counterpart?

A

maxillary 3rd molar

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6
Q

What is the only mandibular tooth with 1 opposing counterpart?

A

mandibular central incisor

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7
Q

A tooth-determined jaw position; you can slide your teeth forward and backward from this position.

A

centric occlusion: the intercuspal position

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8
Q

In the Angle Class 1 (ideal) each maxillary tooth is in a more distal position to its antagonist in the mandibular arch. The mesiobuccal cusp of the maxillary 1st molar should rest on the …

A

mesiobuccal groove of the mandibular 1st molar

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9
Q

Maxillary 1st molar is anterior to the mesiobuccal groove of the mandibular 1st molar; the mesiobuccal cusp rests between the 1st mandibular molar and 2nd premolar

A

Angle Class II (Overbite; retruded)

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10
Q

Most common malocclusion in individuals with Obstructive sleep apnea (OSA)

A

Angle Class II (overbite; retruded)

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11
Q

Overbite with upper anterior teeth flaring out

A

Class II, Division 1

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12
Q

Overbite with central incisors slanting inward, and adjacent lateral incisors slanting out

A

Class II, Division 2

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13
Q

The mandibular anterior teeth are more prominent than the maxillary anterior teeth. The pt often has a large mandible or a short maxilla.

A

Class III (prognathic)

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14
Q

In Class III occlusion usually the mesiobuccal cusps of the maxillary 1st molar rests between …

A

the 1st and 2nd mandibular molars

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15
Q

Mandibular buccal cusps are buccal to the maxillary buccal cusps

A

Crossbite

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16
Q

a.k.a. protrusion of teeth

A

Overjet

17
Q

Horizontal distance between the lingual maxillary and buccal mandibular incisors

A

Overjet

18
Q

Where does the lingual cusp of maxillary 1st premolars hit?

A

distal fossa of the mandibular 1st premolar

19
Q

Where does the lingual cusp of maxillary 2nd premolar hit?

A

Distal fossa of the mandibular 2nd premolar

20
Q

Where does the mesiolingual cusp of maxillary 1st molar hit?

A

Central fossa of the 1st molar

21
Q

Where does the distolingual cusp of maxillary 1st molar hit?

A

distal marginal ridge of the 1st molar and the mesial marginal ridge of the 2nd molar

22
Q

Where does the mesiolingual cusp of maxillary 2nd molar hit?

A

Central fossa of the 2nd molar

23
Q

Where does the distolingual cusp of maxillary 2nd molar hit?

A

distal marginal ridge of the 2nd molar

24
Q

Where does the mandibular buccal cusp of the 1st premolar hit the maxilla?

A

Mesial marginal ridge of the 1st premolar

25
Q

Where does the mandibular buccal cusp of the 2nd premolar hit the maxilla?

A

distal marginal ridge of the 1st premolar and mesial marginal ridge of the 2nd premolar

26
Q

Where does the mandibular mesiobuccal cusp of the 1st molar hit the maxilla?

A

distal marginal ridge of the 2nd premolar and the mesial marginal ridge of the 1st molar

27
Q

Where does the mandibular distobuccal cusp of the 1st molar hit the maxilla?

A

Central fossa of the 1st molar

28
Q

Where does the mandibular distal cusp of the 1st molar hit the maxilla?

A

usually nonfunctional

29
Q

Where does the mandibular mesiobuccal cusp of the 2nd molar hit the maxilla?

A

distal marginal ridge of the 1st molar and mesial marginal ridge of the 2nd molar

30
Q

Where does the mandibular distobuccal cusp of the 2nd molar hit the maxilla?

A

central fossa of the 2nd molar

31
Q

the side of the mandible that moves toward the median line

A

non-working (mediotrusive, balancing) side

32
Q

The side toward which the mandible moves

A

working (laterotrusive) side

33
Q

moving the mandible backwards in an anterior-posterior plane

A

retrusion

34
Q

In the working movement, the side to which the mandible moves the condyle has almost a … movement.

A

straight lateral (pivoting)

35
Q

In the non-working movement, the side that moves toward the median line, more diagonal movement, the condyle is moving …

A

medial, anterior, and down

Dental Anatomy (4 decks)

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