Occlusion

Question 1

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

Answer 1

Class 1

Question 2

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

Answer 2

Class 2

Question 3

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

Answer 3

Class 3

Question 4

Every maxillary tooth is more … than its opposing counterpart.

Answer 4

distal

Question 5

What is the only maxillary tooth with 1 opposing counterpart?

Answer 5

maxillary 3rd molar

Question 6

What is the only mandibular tooth with 1 opposing counterpart?

Answer 6

mandibular central incisor

Question 7

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

Answer 7

centric occlusion: the intercuspal position

Question 8

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 …

Answer 8

mesiobuccal groove of the mandibular 1st molar

Question 9

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

Answer 9

Angle Class II (Overbite; retruded)

Question 10

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

Answer 10

Angle Class II (overbite; retruded)

Question 11

Overbite with upper anterior teeth flaring out

Answer 11

Class II, Division 1

Question 12

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

Answer 12

Class II, Division 2

Question 13

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

Answer 13

Class III (prognathic)

Question 14

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

Answer 14

the 1st and 2nd mandibular molars

Question 15

Mandibular buccal cusps are buccal to the maxillary buccal cusps

Answer 15

Crossbite

Question 16

a.k.a. protrusion of teeth

Answer 16

Overjet

Question 17

Horizontal distance between the lingual maxillary and buccal mandibular incisors

Answer 17

Overjet

Question 18

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

Answer 18

distal fossa of the mandibular 1st premolar

Question 19

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

Answer 19

Distal fossa of the mandibular 2nd premolar

Question 20

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

Answer 20

Central fossa of the 1st molar

Question 21

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

Answer 21

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

Question 22

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

Answer 22

Central fossa of the 2nd molar

Question 23

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

Answer 23

distal marginal ridge of the 2nd molar

Question 24

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

Answer 24

Mesial marginal ridge of the 1st premolar

Question 25

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

Answer 25

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

Question 26

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

Answer 26

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

Question 27

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

Answer 27

Central fossa of the 1st molar

Question 28

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

Answer 28

usually nonfunctional

Question 29

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

Answer 29

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

Question 30

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

Answer 30

central fossa of the 2nd molar

Question 31

the side of the mandible that moves toward the median line

Answer 31

non-working (mediotrusive, balancing) side

Question 32

The side toward which the mandible moves

Answer 32

working (laterotrusive) side

Question 33

moving the mandible backwards in an anterior-posterior plane

Answer 33

retrusion

Question 34

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

Answer 34

straight lateral (pivoting)

Question 35

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

Answer 35

medial, anterior, and down