Paed- Primary teeth

Question 1

What does this image show and how do we treat it?

Answer 1

The white mark is a gingival cyst.

You don’t have to do anything to treat this.

Question 2

What do we call a gingival cyst found on the palate?

Answer 2

Epstein’s pearls

P for palate P for pearls

Question 3

What do we call a gingival cyst found at the alveolar ridges?

Answer 3

Bohn’s nodules

Question 4

What does this image show and how do we treat it?

Answer 4

This is a congenital epulis.

This will shrink as the child gets older (It is not a cancer so won’t spread)

Question 5

What does this image show and how do we treat it?

Answer 5

These are Neonatal or natal teeth (Normally lower central incisors)

To treat you may have to smooth out the teeth, if like in this case they are causing an ulcer under the tounge.

Question 6

What does this image show and how do we treat it?

Answer 6

This is an erruption cyst caused by blood getting into the follicle space when a tooth is erupting.

It will resolve as the tooth errupts.

Question 7

What is the FDI notation for primary teeth?

Answer 7

Question 8

When does the primary maxillary central incisor erupt?

Answer 8

8-12 months after birth

Question 9

When does the primary maxillary lateral incisor erupt?

Answer 9

9-13 months after birth

Question 10

When does the primary maxillary canine erupt?

Answer 10

16-22 months after birth

Question 11

When does the primary maxillary first molar erupt?

Answer 11

13-19 months after birth

Question 12

When does the primary maxillary second molar erupt?

Answer 12

25-33 months after birth.

Question 13

When does the primary mandibular central incisor erupt?

Answer 13

6-10 months after birth

Question 14

When does the primary mandibular lateral incisor erupt?

Answer 14

10-16 months

Question 15

When does the primary mandibular canine erupt?

Answer 15

17-23 months

Question 16

When does the primary mandibular first molar erupt?

Answer 16

14-18 months after birth

Question 17

When does the primary mandibular 2nd molar erupt?

Answer 17

23-31 months

Question 18

How is the path for tooth erruption cleared?

Answer 18

Follicle is activated to initate osteoclasts to nibble away at the crestal bone.

AND

the primary root is resorbed.

Question 19

What is the pattern for primary tooth erruption?

Answer 19

Lower teeth errupt before the Upper teeth (except lateral incisors)

A

B

D

C

E

Question 20

Compare primary and permanent incisors?

Answer 20

Primary incisors have a smaller crown and smaller root than the permanent teeth.

Question 21

Compare primary and permanent molars

Answer 21

Primary molars are wider mesiodistally and more bulbous.

Question 22

Compare the roots of primary molars compared to that of pemanent molars

Answer 22

The roots of primary teeth tend to be narrower and they flare apically to allow room in between for the permanent crowns.

Question 23

discuss the pulp of primary teeth?

Answer 23

The pulp is larger in primary teeth but the enamel and dentine is thinner. This means it is easier to expose the pulp chamber as the pulp horns are closer to enamel.

Question 24

Why are primary teeth impossible to clean properly?

Answer 24

They have flat &thin root canals with multiple accessory canals.

Question 25

what is the leeway space?

Answer 25

The extra mesiodistal space occupied by the wider primary molars that are replaced by premolars. it is 1.5mm per side on the upper arch 2.5mm per side on the lower arch.

Question 26

how long does the mixed dentition stage last?

Answer 26

From the erruption of the first permanent tooth to the exfoliation of the last primary tooth (often the upper canine) Age 6-11 (can last till a child is 12/13)

Question 27

What is the erruption pattern for the permanent maxillary teeth?

Answer 27

6 1 2 4 5 **3** 7 1st permanent molar erupts then back to front except canines.

Question 28

What is the erruption pattern for the permanent mandibular teeth?

Answer 28

6 1 2 3 4 5 7 1st molar erupts then front to back.

Question 29

At what age does the permanent maxillary central incisor erupt?

Answer 29

7 years

Question 30

At what age does the permanent maxillary lateral incisor erupt?

Answer 30

8 years

Question 31

At what age does the permanent maxillary canine erupt?

Answer 31

11 years

Question 32

At what age does the permanent maxillary first premolar erupt?

Answer 32

10 years

Question 33

At what age does the permanent maxillary second premolar erupt?

Answer 33

10 years

Question 34

At what age does the permanent maxillary 1st molar erupt?

Answer 34

6 years

Question 35

At what age does the permanent maxillary 2nd molar erupt?

Answer 35

12 years

Question 36

lower teeth erupt before uppers except the...

Answer 36

second premolar in secondary teeth. Lateral Incisors in primary teeth.

Question 37

if there is crowding on the upper arch, how does this affect eruption?

Answer 37

the upper canine is excluded.

Question 38

if there is crowding on the lower arch, how does this affect eruption?

Answer 38

there is lack of space for the second premolar

Question 39

describe this image

Answer 39

Ugly duckling phase. The lateral incisors push on the root and splay out the central incisors. The permanent canines come in to close the gap as they push the splay down.

Question 40

what tooth is this?

Answer 40

an upper second primary molar. it has: * 3 roots - 2 buccal 1 palatal * A C shaped fissure on the mesial side. * more bulbus buccal cusp. * Transverse ridge.

Question 41

what tooth is this?

Answer 41

a lower second primary molar. it has: * 5 cusps =3 buccal cusps * largest cusp mesial * smallest cusp = distal

Question 42

what tooth is this?

Answer 42

the upper first primary molar . it has: * square shape * 3 roots * a mesiobuccal tubercle

Question 43

what tooth is this?

Answer 43

a lower first primary molar. it has: * rectangular shape * mesiobuccal tubercle * 2 roots.

Question 44

What is the primate space?

Answer 44

The space found behind the laterals of the upper arch and the canines of the lower arch. THE RED

Question 45

At what age does the permanent mandibular central incisor erupt?

Answer 45

6 years

Question 46

At what age does the permanent mandibular lateral incisor erupt?

Answer 46

7 years

Question 47

At what age does the permanent mandibular canine erupt?

Answer 47

9 years

Question 48

At what age does the permanent mandibular 1st premolar erupt?

Answer 48

10 years

Question 49

At what age does the permanent mandibular 2nd premolar erupt?

Answer 49

10 years

Question 50

At what age does the permanent mandibular 1st molar erupt?

Answer 50

6 years

Question 51

At what age does the permanent mandibular 2nd molar erupt?

Answer 51

12 years.