Primary Teeth

Question 1

Simplified Rule

Answer 1

Simplified rule A->B->D->C->E (palmer)

Central incisors->lateral incisors -> first molars -> canines -> second molar

Question 2

At what age does the eruption of primary teeth begin ?

Answer 2

6-7 months in average

Question 3

At what age does the eruption of primary teeth completes ?

Answer 3

24-30 months in average

Question 4

Does the canine erupts before the 1st molar ?

Answer 4

No,

first molar ERupts before canine

Question 5

When does the crown of all primary teeth begin to calcify ?

Answer 5

between 3.5-6 months in utero

Question 6

When does the permanent teeth begin to calcify ?

Answer 6

At BIRTH starting with permanent 1st molar

Question 7

Is the calcification timing important ?

Answer 7

YES
If a mother or a child becomes seriously ill during calcification of primary or permanent teeth , the formation of the crows of the teeth can be effected

Question 8

why is the spacing in prymary teeth usually desired ?

Answer 8

Permanent teeth being larger then primary - spacing allows more space to fit into proper alignment .

Question 9

Should a pediatric recommend braces if there is huge gaps/spaces between the primary teeth

Answer 9

NO, spacing is critical in primary teeth

Question 10

What is a primate space

Answer 10

Spaces between the Primary teeth but the term “PRIMATE SPACE” is more specific:

In the mandibular arch, the primate space is between the canine and the 1st molar (or 1st premolar in adults).
Whereas, in the maxillary arch, it is between the lateral incisors and canines.

Question 11

What are 5 functions of primary teeth?

Answer 11

aesthetics
mastication
speech
place holders
primate spaces

Question 12

one of the functions of primary teeth is to serve as place holders for______________.

Answer 12

succadaneous, or permanent teeth

Question 13

spaces between primary teeth that leave room for the jaw to grow, are known as

Answer 13

primate spaces

Question 14

what are 2 areas where primate spaces are usually found?

Answer 14

between the maxillary lateral incisor, and canine
between the mandibular canine and 1st primary molar
mesial to the max.canine
distal to man. canine

Question 15

What might occur if a child loses their primary teeth too early? What is done in this case?

Answer 15

mesial drift of other teeth, making it so that permanent or secondary teeth don’t have room to erupt
space maintainers are used

Question 16

primary dentation

Answer 16

beginning in infancy with the eruption of the first tooth about 6 months
complete from approximately 3-6 yrs of age where all

Question 17

Mixed dentition

Answer 17

Approximately age 6- 13 both primary and permanent are present in the mouth

Question 18

Adolescent dentation

Answer 18

all primary teeth have exfoliated, second permanent molars may be erupting, and 3rd molars have not erupted

Question 19

Adult dentation

Answer 19

All permanent teeth are present and eruptive growth is complete

Question 20

Overbite

Answer 20

Vertical measurement primary incisors

Question 21

overjet

Answer 21

horizontal

Question 22

“Rule of 4” for primary teeth Eruption

Answer 22

Eruption of 4 teeth every 4 months beginning at the age of 6-7 months
Ex: 7months 4 teeth - MAN->MAX centrals
11 months 8 teeth - MAN-MAX lateral, central
15 months 12 teeth - MAN->MAX central, lateral incisors, first molars
19 months - 16 teeth -MAN->MAX central & lateral incisors , first molar, canine
23 months 20 teeth - MAN->MAX central &lateral incisors, first molar, canine, second molar