Occlusal examination

Question 1

malocclusion is when a deflection from the normal relation of teeth in the __ or __ arch

Answer 1

same or opposing

Question 2

angles classification is based off of the maxillary __

Answer 2

MB cusp of max. 1st molar

Question 3

angles classification is based off of the mandibular __

Answer 3

buccal groove of mand. 1st molar

Question 3

Class I- MB cusp of max 1st molar __ buccal groove of mand 1st molar

Answer 3

bisects

Question 4

class I malocclusion characterized by

Answer 4

crowding, rotation, and other positional abnormalities

Question 4

class III- MB cusp of max 1st molar is __ to buccal groove of mand 1st molar

Answer 4

distal

Question 4

class II- MB cusp of max 1st molar is __ to mand 1st molars buccal groove

Answer 4

mesial

Question 4

overjet is the __ overlap of max CI over mand CI

Answer 4

horizontal

Question 4

overjet is measured using a __

Answer 4

periodontal probe

Question 4

angle’s class II is also known as an __

Answer 4

overbite

Question 4

overbite can also be around __ of the height of the mandibular incisors

Answer 4

20-30%

Question 5

angle’s class III is also known as an __

Answer 5

underbite

Question 5

overbite is the __ overlap of the max CI over the mand CI

Answer 5

vertical

Question 6

anterior crossbite is the __ growth of the mandible exceeds the maxilla

Answer 6

horizontal

Question 6

overjet is normally __ mm

Answer 6

2-3

Question 7

generally erosive tooth wear is classified by the specific __ responsible for the wear

Answer 7

mechanism

Question 7

anterior crossbite lower anterior teeth end up __ to the upper anterior teeth

Answer 7

in front

Question 7

anterior crossbite can also result from underdevelopment of the __

Answer 7

maxilla

Question 7

normal overbite is normally __ mm

Answer 7

2-3

Question 7

the etiology of dental wear is __

Answer 7

multifactorial

Question 7

evidence of occlusal wear/ trauma

Answer 7

-wear facets
-broken restorations
-chipped teeth

Question 8

attrition is a result of __ movements of the mandible

Answer 8

functional or para- functional

Question 8

evidence of bruxism

Answer 8

-bony ridges
-gingival recession
-abfractions
-broken teeth and restorations
-excessive attrition

Question 8

attrition is the mechanical wear of the __ surfaces

Answer 8

incisal or occlusal

Question 8

with attrition __ accelerates

Answer 8

bruxism

Question 9

attrition can be __ related

Answer 9

age

Question 10

with attrition __ surfaces match jaw movements and usually have similar degree of wear

Answer 10

occlusal

Question 11

abfraction is a form of wear along the __ that is not caused by acid activity

Answer 11

gingival margin

Question 12

abfraction has __ wedge- shaped defects

Answer 12

cervical

Question 13

bruxism can result in abfractions because __ area of tooth __ under the load

Answer 13

cervical, flexes

Question 14

abfraction is __

Answer 14

physical

Question 15

abrasion is tooth loss resulting from __ between the teeth and external objects

Answer 15

direct frictional forces

Question 16

abrasion is tooth loss resulting from frictional forces between contacting teeth in the presence of an __

Answer 16

abrasive medium

Question 17

abrasion may also occur from improper __ techniques

Answer 17

brushing

Question 18

abrasion from improper brushing most common seen as a sharp, __ notch

Answer 18

V- shaped

Question 19

abrasion from improper brushing most common in the __ of the tooth

Answer 19

gingival 1/3

Question 20

abrasion can also occur from __ such as holding a pipe stem by the teeth

Answer 20

habits

Question 21

interproximal abrasion can be from __

Answer 21

toothpicks

Question 22

incisal notching abrasion can be from __

Answer 22

-nails -pipe

Question 23

cervical abrasion can be from __

Answer 23

toothbrushing

Question 24

erosion is the loss of tooth structure by a __ action

Answer 24

chemicomechanical

Question 25

erosion on the facial can be from __

Answer 25

lemons, acidic liquids

Question 26

erosion on the lingual can be from __

Answer 26

bulimia

Question 27

bulimia can cause these issues

Answer 27

-thinning, chipping of incisal edges -anterior open bite -loss of vertical dimension

Question 28

bulimia oral signs

Answer 28

-raised amalgams -thermal sensitivity

Question 29

what angles class is this?

Answer 29

I

Question 30

what angles class is this?

Answer 30

II

Question 31

what angles class is this?

Answer 31

III

Question 32

what is this?

Answer 32

anterior cross bite

Question 33

what is this?

Answer 33

posterior cross bite

Question 34

this is an example of

Answer 34

attrition

Question 35

this is an example of

Answer 35

abfraction

Question 36

this is an example of

Answer 36

erosion

Question 37

this is an example of

Answer 37

bulimia

Question 38

what is the most common cause of bruxism for children and adolescents? | ******

Answer 38

malocclusion

Question 39

with attrition teeth wear down on the occlusal surface altering the __

Answer 39

vertical dimension

Question 40

attrition may not only affect the crown height but the __

Answer 40

interproximal contact relationships

Question 41

attrition affecting interproximal contacts can put the __ closer together when in occlusion

Answer 41

mandible and maxilla

Question 42

where is abfraction most common?

Answer 42

the incisors due to constant force

Question 43

goals of night guards

Answer 43

-redistribute occlusal forces -relax masticatory muscles -stabilize TMJ -protect dentition -decrease symptoms -reduce bruxism