Primary Teeth

Question 1

First tooth from the midline

Answer 1

Primary Central Incisor or Secondary Central Incisor

Question 2

Second tooth from the midline

Answer 2

Primary Lateral Incisor or Secondary Lateral Incisor

Question 3

Third tooth from the midline

Answer 3

Primary Canine or Secondary Canine

Question 4

Fourth tooth from the midline

Answer 4

Primary first molar or First Premolar

Question 5

Fifth tooth from the midline

Answer 5

Primary Second Molar or Second Premolar

Question 6

Sixth tooth from the midline

Answer 6

Secondary First Molar

Question 7

Seventh tooth from the midline

Answer 7

Secondary Second Molar

Question 8

Eighth tooth from the midline

Answer 8

Secondary Third Molar

Question 9

What is the age range when all primary teeth will be present?

Answer 9

> 2 years to >6 years

Question 10

When does mixed dentition begin

Answer 10

With eruption of first permanent teeth

Question 11

Approximately when do permanent first molars erupt?

Answer 11

6 years old

Question 12

What age range do permanent incisors erupt?

Answer 12

6-9 years

Question 13

What age range do the permanent canines and premolars erupt?

Answer 13

9-12 years

Question 14

When does mixed dentition end?

Answer 14

At the exfoliation of the last primary tooth

Question 15

At approximately what age do the permanent second molars erupt?

Answer 15

12 years

Question 16

At what age range do the permanent third molars erupt?

Answer 16

17-21 years

Question 17

When does the hard tissue of primary teeth start to form?

Answer 17

4-6 months in utero

Question 18

When are the primary crowns completely formed?

Answer 18

3 1/2 months to 11 months old

Question 19

What is the order of primary eruption of teeth

Answer 19

Mandibular Incisors
Maxillary Incisors
First Molars
Canines
Second molars

Question 20

When is the root formation complete on primary teeth?

Answer 20

1 1/2 to 3 years old

Question 21

The difference between the combined mesiodistal widths of the deciduous cuspids and molars and their successors.

Answer 21

Leeway Space

Question 22

The spacing between the primary canine and primary first molar that normally occurs in the anterior primary dentition in children

Answer 22

Primate Space

Question 23

Anterior roots of primary anterior teeth bend in this direction

Answer 23

Labially

Question 24

This area is prominent on primary molars

Answer 24

Mesial Cervical ridge

Question 25

Which primary molar is larger?

Answer 25

Second

Question 26

Why are the roots of primary teeth are very divergent?

Answer 26

To make room for forming adult premolars within the jaw bones

Question 27

Primary incisors are longer incisocervically than mesiodistally except these

Answer 27

Maxillary Central

Question 28

Only primary tooth where the mesial contact of the crown is more cervical than distal.

Answer 28

Maxillary Canine

Question 29

Only primary tooth where the mesial cusp ridge is longer than the distal

Answer 29

Maxillary Canine

Question 30

This gives maxillary canines a concave “S” shape

Answer 30

Pronounced labial and lingual cervical bulge

Question 31

Primary second molars resemble what permanent molars

Answer 31

First molars

Question 32

This is the largest cusp on the primary second molar

Answer 32

Distal Buccal

Question 33

These primary teeth resemble no other tooth

Answer 33

First molars

Question 34

This cusp may be absent in primary maxillary first molars

Answer 34

Distolingual

Question 35

The primary maxillary first molar has this type of groove pattern

Answer 35

H shaped

Question 36

Molar pulp chambers are located mostly in this area

Answer 36

Crown

Question 37

Which teeth are succedaneous?

Answer 37

The ones that replace primary teeth. 4-13 and 20-29

Question 38

Which teeth erupt from 6 to 9 years of age?

Answer 38

First Molars and Incisors

Question 39

Which teeth erupt from 9 to 10 years of age?

Answer 39

Mandibular Canines

Question 40

What teeth erupt from age 10 - 12?

Answer 40

Maxillary canines, premolars and Second Molars

Question 41

When does the hard tissue of permanent teeth begin to form?

Answer 41

Birth to 3 years old

7-10 years old for third molars

Question 42

When are the crowns completely formed for permanent teeth?

Answer 42

Eruption date minus 3 years

Question 43

When are the roots of permanent teeth completely formed?

Answer 43

Eruption date plus 3 years