Dentitions

Question 1

Teeth of the permanent dentition

Answer 1

32 teeth: 4 each
central incisors
lateral incisors
canines
 1st premolar 
2nd premolars
1st molars
2nd molars
3rd molars

Question 2

Teeth of primary/deciduous dentition

Answer 2

20 teeth: 4 each
Central incisors
Lateral incisors
Canines
1st molars
2nd molars

Question 3

3 types of dentition notation

Answer 3

Universal numbering system
International numbering system
Palmer notation method

Question 4

Arches of the permanent dentition

Answer 4

Maxillary: stationary
Mandibular: rotational/gliding joint, raises and depressed w/ lateral excursions

Question 5

Quadrants on the permanent dentition

Answer 5

Upper right
Upper left
Lower left
Lower right

Question 6

Sextants of the permanent dentition

Answer 6

Upper right
Maxillary anteriors
Upper left
Lower left
Mandibular anteriors
Lower right

Question 7

5 surfaces of anterior teeth

Answer 7

Labial/facial 
Palatal (max)/ lingual (mand)
Incisal
Mesial
Distal

Question 8

5 surfaces of posterior teeth

Answer 8

Buccal/facial
Palatal (max)/ lingual (mand)
Mesial
Distal
Occlusal

Question 9

Parts of the tooth

Answer 9

Crown

Root

Question 10

Tissues of the crown

Answer 10

Enamel
Dentin
Pulp

Question 11

Tissues of the root

Answer 11

Cementum
Dentin
Pulp canals

Question 12

What type of tissue makes up the bulk of the crown and root?

Answer 12

Dentin

Question 13

What tissue covers the dentin on the crown

Answer 13

Enamel

Question 14

What is contained within the pulp chamber and where is it located?

Answer 14

Pulp chamber is in the crown and holds the nerve tissue of the crown

Question 15

What tissue covers the dentin in the root area of the tooth?

Answer 15

Thin layer of Cementum

Question 16

Where are pulp canals located and what do they contain?

Answer 16

Located in root of tooth and contain nerve tissue

Question 17

What are “horns”?

Answer 17

Protrusions of the pulp chamber that correspond with the cusps in the crown

Question 18

What is enamel

Answer 18

Hardest, calcified tissue in the body made of specialized epithelium.

Covers the anatomical crown

Mineralized

Question 19

What is dentin?

Answer 19

Hard but not as hard as enamel. Makes up the bulk of the root and crown.

Mineralized, connective tissue

Question 20

What is pulp?

Answer 20

Nerve tissue in the crown and roots

Question 21

Anatomical position of the root

Answer 21

CEJ to apex

Question 22

Clinical part of the root

Answer 22

The exposed root surface

Question 23

Anatomical part of the crown

Answer 23

Incisal edge

Cusp tip
To cervical line/CEJ

Question 24

Clinical portion of crown

Answer 24

Incisal edge

Cusp tip to gingival margin

Question 25

Memelon

Answer 25

Remnants of love formation on the incisal ridge Look like scalloped edges

Question 26

Cusps

Answer 26

Rounded, prominent elevation in canines (cuspid), premolars (bicuspid) and molars

Question 27

Cingulum

Answer 27

The lingual lobe on anterior teeth

Question 28

Height of contour or crest of curvature

Answer 28

The greatest elevation on a specific surface of a tooth

Question 29

Ridge

Answer 29

Named by location Linear elevation/ rounded borders of enamel Anteriors: lingual surfaces of mesial and distal Posterior: mesial and distal on occlusal surfaces Lingual ridge for single cusp Triangular ridge for 2 or more cusps

Question 30

Triangular ridge

Answer 30

Formed along the descent from the cusp tip, found on the lingual (anterior) or occlusal (posterior) surfaces

Question 31

Transverse ridge

Answer 31

Crosses occlusal surface transversely on premolars and molars Two triangular ridges come together and completely line up (buccal triangular and lingual triangular)

Question 32

Oblique ridge

Answer 32

Crosses the occlusal surface obliquely Maxillary molars only (1st and 2nd) Coursing from distal cusp of ridge of Mesiolingual cusp to the triangular cusp ridge of the distobuccal cusp

Question 33

Fossa

Answer 33

Irregular depression or concavity Lingual or occlusal surfaces

Question 34

Developmental groove

Answer 34

Groove or line marking the fusion point of the primary parts (lobes) of a tooth

Question 35

Supplemental groove

Answer 35

Less distinct, shallow linear depression, supplemental to the developmental groove

Question 36

Pit

Answer 36

Pinpoint depression at the junction of developmental grooves or at the groove terminal end