oral anatomy

Question 1

7 tooth surfaces and where they are located.

Answer 1

occlusal: chewing
incisal: anterior edge
lingual: tongue side
buccal: cheek side
mesial: toward midline
distal: away from midline
facial: anterior front

Question 2

What are the 6 cavity classifications?

Answer 2

ⅰ: Top, Posterior
ⅱ: In between, posterior
ⅲ: In between, anterior
ⅳ: Top, anterior
ⅴ: Gumline, any
ⅵ: Cusp tip, any

Question 3

What is the outer shell of a tooth?

Answer 3

Enamel

Question 4

What is the inner “softer” layer of a tooth?

Answer 4

Dentin

Question 5

What is the layer of the tooth that has nerves and blood vessels?

Answer 5

Pulp

Question 6

What is the portion of the tooth that is visible in the mouth?

Answer 6

Crown

Question 7

What is the portion of the tooth that is under the gum in the bone?

Answer 7

Root

Question 8

What is the “shock absorbing” membrane that surrounds our tooth?

Answer 8

Periodontal ligament

Question 9

What is the tip of the root called?

Answer 9

Apex

Question 10

What is another name for the gum tissue?

Answer 10

Gingiva

Question 11

What is the area called where the cementum meets the enamel?

Answer 11

Cementoenamel junction

Question 12

What is the area called where the nerves enter the tooth through the bone?

Answer 12

Apical foramen

Question 13

What is the layer that “cements” the tooth to the bone?

Answer 13

Cementum

Question 14

What is the technical name of the tooth socket?

Answer 14

Alveolar bone

Question 15

What is the portion of the tooth that joins the crown of the tooth to the root of the tooth?

Answer 15

Neck/cervix

Question 16

How many quadrants in the mouth?

Answer 16

4

Question 17

How many sextants in the mouth?

Answer 17

6

Question 18

How many molars in the mouth?

Answer 18

12

Question 19

How many premolars in the mouth?

Answer 19

8

Question 20

How many canines in the mouth?

Answer 20

4

Question 21

How many incisors in the mouth?

Answer 21

8

Question 22

Tooth #6 is what type of tooth?

Answer 22

Canine

Question 23

Tooth #32 is what molar?

Answer 23

Third

Question 24

Tooth #14 has how many cusps?

Answer 24

5

Question 25

Tooth #8/#9 are what type of incisors?

Answer 25

Central

Question 26

How many teeth are in the mouth?

Answer 26

32

Question 27

The UR quadrant has how many teeth in it?

Answer 27

8

Question 28

The upper anterior sextant is composed of what teeth?

Answer 28

6 - #11

Question 29

What is another name for third molars?

Answer 29

Wisdom teeth

Question 30

What is another name for bicuspids?

Answer 30

Premolars

Question 31

What is the name of the upper arch?

Answer 31

Maxillary

Question 32

What is the name of the lower arch?

Answer 32

Mandibular

Question 33

What quadrant is tooth #19 located in?

Answer 33

Lower left

Question 34

What quadrant is tooth #8 located in?

Answer 34

Upper right

Question 35

Tooth #27 is in which quadrant?

Answer 35

Lower right

Question 36

How many teeth are in the primary dentition?

Answer 36

20

Question 37

What type of teeth are NOT in the primary dentition?

Answer 37

Premolars/bicuspids

Question 38

How do we count primary teeth?

Answer 38

A-J ; K-T

Question 39

Which tooth has a cusp of carabelli?

Answer 39

Maxillary 1st molar; #3, #14

Question 40

How many roots do each type of tooth have?

Answer 40

Upper molar: 3
Lower molar: 2
Upper 1st bicuspids: 2
Other bicuspids: 1
Canine: 1
Incisor: 1