Dental Anatomy

Question 1

Primary teeth calcify …

Answer 1

• in utero
• 2nd trimester
• 4-6 months

Question 2

1st molars begin calcification

Answer 2

at Birth

Question 3

Anteriors begin calcification

Answer 3

1 year

Question 4

Premolars begin calcification

Answer 4

2nd year

Question 5

2nd molars begin calcification

Answer 5

3 years

Question 6

3rd molars begin calcification

Answer 6

7-9 yrs

Question 7

Apices of permanent dentition are complete … years after eruption.

Answer 7

2.5

Question 8

Apices of primary teeth are complete … years after eruption, by age …

Answer 8

1.5 years

3 years old

Question 9

The mixed dention stage ends with the exfloiation of the primary …

Answer 9

maxillary canine

Question 10

Calcification of the permanent 1st molar ends at …

Answer 10

2.5 - 3 years

Question 11

Calcification of the permanent Central Incisor ends at …

Answer 11

3.5 years

Question 12

Calcification of the permanent lateral incisor ends at …

Answer 12

4-5 years old

Question 13

Calcification of the permanent canine ends at …

Answer 13

4 - 7 years old

Question 14

Calcification of the permanent 1st premolar ends at …

Answer 14

5-6 years old

Question 15

Calcification of the permanent 2nd premolar ends at …

Answer 15

5.5 - 7 years old

Question 16

Calcification of the permanent 2nd molar ends at …

Answer 16

6 - 8 years old

Question 17

Calcification of the permanent 3rd molar ends at …

Answer 17

13 - 16 years old

Question 18

What color are primary teeth compared to adult teeth?

Answer 18

whiter and lighter than permanent

Question 19

Primary teeth are more bulbous and constricted due to

Answer 19

smaller occlusal table

Question 20

Where is the primate space on the mandible for primary teeth?

Answer 20

between the canine and 1st molar

Question 21

Primary maxillary central incisor is wider … than …

Answer 21

M/D than Inciso-cervically

Question 22

What permanent tooth is like the primary 2nd molar?

Answer 22

permanent maxillary 1st molar

Question 23

Which primary tooth has a crown similar to a premolar and roots similar to a molar?

Answer 23

Maxillary 1st molar

Question 24

Primary maxillary and mandibular 1st molars have a

Answer 24

prominent cervical ridge

Question 25

What tooth is unlike any other tooth, it is the most unique primary or permanent tooth?

Answer 25

Mandibular 1st molar * 2 roots * 4 cusps

Question 26

Most prominent cusps on a primary mandibular 1st molar

Answer 26

MB and ML Prominent transverse ridge connects them

Question 27

The primary mandibular 1st molar has 4 cusps, the ( ) is the largest, ( ) is the tallest and sharpest, and the ( ) are the smallest.

Answer 27

* MB * ML * DB, DL

Question 28

Greatest mesial CEJ contour (cervical curvature) of all teeth

Answer 28

Maxillary CI

Question 29

Maxillary incisal edges are ( ) while mandibular incisal edges are ( ) to root axis, except ( ) which is ( ) to the root.

Answer 29

* Centered * Lingual * Maxillary Canine * Facial

Question 30

Non-molar tooth most frequently has a mesial and distal pulp horn.

Answer 30

Maxillary CI

Question 31

Non-molar tooth that is **least** likely to have a **bifurcated** root.

Answer 31

Maxillary CI

Question 32

Maxillary CI is cut at the CEJ. What is the tooth outline?

Answer 32

Triangular

Question 33

When extracting a tooth, which is the easiest tooth to rotate due to its root shape?

Answer 33

Maxillary CI ## Footnote *roundest root form*

Question 34

Primary max central incisors differ from permanent max centrals because they ( )

Answer 34

Do not have mamelons

Question 35

Compared to the maxillary CI, the maxillary canine is ( ) and has a ( )

Answer 35

wider B/L longer root

Question 36

A girl has no caries except on her maxillary lateral, this is to to the ( ) that goes into the gingiva.

Answer 36

disto-lingual groove

Question 37

What part of the maxillary lateral incisor makes scaling difficult?

Answer 37

palato-radicular groove ## Footnote *Most common tooth to have this*

Question 38

Which non-molar tooth is most likely to be trifurcated?

Answer 38

Maxillary 1st PM

Question 39

Posterior tooth with the greatest cervico-occlusal crown height (CEJ --\> crown tip)

Answer 39

Maxillary 1st PM

Question 40

The maxillary 1st pm has the most pronounced ( ) of any **maxillary** tooth.

Answer 40

developmental marginal groove

Question 41

The maxillary 1st pm is the only **permanent** tooth with a longer ( ) than ( ) on the ( ). The only primary tooth exhibiting this is the ( ).

Answer 41

* Mesial cusp ridge * Distal cusp ridge * Facial * primary maxillary canine

Question 42

The maxillary 1st pm has a prominent ( ) that can make scaling difficult, and a ( ) that makes adapting a matrix band difficult.

Answer 42

* mesial marginal ridge groove * mesial concavity

Question 43

Kidney shaped root outline/pulp chamber

Answer 43

max 1st pm

Question 44

Premolar tooth with the steepest cusp inclines.

Answer 44

max 1st pm

Question 45

Most symmetrical posterior tooth.

Answer 45

max 2nd pm

Question 46

The maxillary 2nd pm looks "wrinkly" because it has a short ( ) with a lot of ( ).

Answer 46

short supplemental grooves

Question 47

The max 2nd pm has ( ) and ( ) that are closest in size compares to any other posterior tooth.

Answer 47

fossa 2 cusps with equal height

Question 48

The max 2nd pm is the only premolar without a ( )

Answer 48

mesial root depression

Question 49

Which type of mandibular pm is the maxillary 1st most like?

Answer 49

H - type

Question 50

The lingual dimension is greater than buccal dimenstion.

Answer 50

Maxillary 1st molar ## Footnote *Cusp of Carabelli*

Question 51

On the max 1st molar the oblique ridge is formed between ( ) and ( ) cusps.

Answer 51

ML DB

Question 52

Which tooth is more likely to have 3 cusps?

Answer 52

Maxillary 2M (heart shape) Mandibular 2PM