Q4-Alignment and Occlusion

Question 1

______ ______ forces are acting on the teeth before and after eruption

Answer 1

complex multidirectional

Question 2

What type of forces direct the teeth lingually

Answer 2

muscles lips cheeks

Question 3

What type of forces direct the teeth labially

Answer 3

tongue

Question 4

What type of forces affect the position of teeth via exercising part of the body that is not what it is intended to do

Answer 4

parafunctional forces (pipe, musical instrument, sucking thumb, bruxism, etc.)

Question 5

Functional response of the alveolar bone and gingival fibers surrounding the teeth cause what

Answer 5

mesial drifting of teeth toward the midline

Question 6

During mastication there is a slight buccolingual and vertical movement of the teeth which causes what

Answer 6

wear of proximal contacts

Question 7

This helps maintain the contact between teeth

Answer 7

mesial drifting of teeth tower the midline

Question 8

All mandibular teeth are inclined which way

Answer 8

mesially

Question 9

Posterior mandibular teeth are inclined which way

Answer 9

lingually

Question 10

Anterior maxillary teeth are inclined which way

Answer 10

mesially

Question 11

Posterior maxillary teeth are inclined which ways

Answer 11

distally buccally

Question 12

This curve is along the plane of occlusion from antero-posterior

Answer 12

curve of Spee

Question 13

This curve in the plane of occlusion is from buccal to lingual

Answer 13

curve of Wilson

Question 14

What are the 3 things that make up posterior teeth

Answer 14

cusps, gooves, and sulci

Question 15

This is the area of a posterior tooth between the obuccal and lingul cusps

Answer 15

occlusal table

Question 16

The occlusal table respresents approximately what percentge of the total buccal to lingul dimension

Answer 16

50-60%

Question 17

This is a place for the opposing cusp and a place to hold food during mastication

Answer 17

grooves

Question 18

Which arch is slightly smaller than the other

Answer 18

mandibular is smaller

Question 19

These are the supporting or centric cusps

Answer 19

maxillary lingual

mandibular buccal

Question 20

This is caused by skeletal arch size or eruption discrepancies

Answer 20

posterior crossbite

Question 21

In posterior crossbite, these are the supporting or centric cusps

Answer 21

maxillary buccal

mandibular lingual

Question 22

This is responsible for maintaining the vertical dimension of occlusion (VDO) and trituate food during mastication

Answer 22

centric cusp

Question 23

This maintains the bolus of food on the occlusal table during mastication, assist in shearing food, and minimize tissue impingement

Answer 23

noncentric cusps

Question 24

This is the distance between the nose and the chin when the teeth are occluding

Answer 24

vertical dimension of occlusion (VDO)

Question 25

This is the occlusal relationship of the maxillary and mandibular teeth when the cusps are fully interposed

Answer 25

maximun intercuspation position (ICP)

Question 26

What are the two types of contact during maximun intercuspation position

Answer 26

cusp to marginal ridge

cusp to fossa

Question 27

In which cuspal contact is the force through the long axis of the tooth

Answer 27

cusp - fossa occlusion

Question 28

buccal cusps of mandibular teeth occlude where

Answer 28

in the central fossae of the maxillary teeth

Question 29

The lingual cusps of the maxillary teeth occlude where

Answer 29

in the central fossa of the mandibular teeth

Question 30

In a class I, the mesialbuccal cusp of the mandibular first molar occludes where

Answer 30

in the embrasure space between the maxillary 2nd premolar and 1st molar

Question 31

In a class I, the mesialbuccal cusp of the maxillary 1st molar is aligned directly over what

Answer 31

The buccal groove of the mandibular 1st molar

Question 32

In a class I, the mesiolingual cusp of the maxillary 1st molar is situated in where

Answer 32

The central fossa area of the mandibular first molar

Question 33

In a class II, the mesial-buccal cusp of the mandibular 1st molar occludes where

Answer 33

In the central fossa area of the maxillary first molar

Question 34

In a class II, the mesial-buccal cusp of the mandibular 1st molar is aligned with what

Answer 34

The buccal groove of the maxillary first molar

Question 35

In a class II, the distolingual cusp of the maxillary first molar occludes where

Answer 35

In the central fossa areas of the mandibular first molar

Question 36

In a class III, the distobuccal cusp of the mandibular 1st molar is situated where

Answer 36

In the embrasure space between the maxillary 2nd premolar and 1st molar

Question 37

In a class III, the mesiobuccal cusp of the maxillary 1st molar is situated where

Answer 37

over the embrasurespace betwwen the mandibular 1st and 2nd molar

Question 38

In a class III, the mesiolingual cusp of the maxillary 1st molar is situatued where

Answer 38

in the mesial pit of the mandibular 2nd molar