Oral Anatomy - Primary And Permanent Dentition

Front 1

When do the adult first molars first come in? what age?

Back 1

6 yr. old - "six-year molar"

Front 2

When do the adult second molars come in?

Back 2

12 years old - "12-year -molars"

Front 3

How many teeth are present from birth to 6 months?

Back 3

NONE

Front 4

T/F the primary teeth eruption phase begins at 6 months and goes to <2yrs.

Back 4

True

Front 5

From 6 mo. - 2yrs are there any primary or permanent teeth present?

Back 5

Some (not all) primary teeth, NO permanent teeth.

Front 6

From >2 yrs - <6yrs. are any primary or permanent teeth present?

Back 6

ALL primary teeth/ NO permanent teeth

Front 7

When do the primate spaces develop?

Back 7

around 5+ years.

Front 8

When the mixed dentition begins what teeth are known to erupt first?

Back 8

permanent first molars or mandibular central incisors

Front 9

What is the mixed dentition?

Back 9

Mixed dentition begins with the eruption of first permanent teeth

Front 10

When 6 years or older what teeth erupt?

Back 10

Permanent first molars

Front 11

What teeth erupt from 6 - 9 years?

Back 11

permanent first molars AND permanent incisors

Front 12

What teeth erupt from 9-12 years?

Back 12

permanent canines and premolars.

Front 13

What teeth are present in a 9-12 year old?

Back 13

permanent first molars, permanent incisors, and permanent canines and premolars.

Front 14

What marks the ending of the mixed dentition?

Back 14

with the loss of the last primary tooth. (age 12)

Front 15

At what age does the mixed dentition end?

Back 15

12

Front 16

At 12 years old or older what teeth erupt and are present in the dentition?

Back 16

Permanent second molars.

Front 17

At 17 years old, what teeth erupt?

Back 17

permanent third molars.

Front 18

T/F the loss of a primary tooth occurs essentially at the same time as the eruption of the succedaneous tooth.

Back 18

True

Front 19

Exfoliation refers to what of the primary teeth?

Back 19

loss

Front 20

Permanent teeth are also known as _______ teeth.

Back 20

succedaneous teeth (succed, the primary).

Front 21

During the first __-__ month in utero the hard tissue formation begins.

Back 21

4-6 months in utero, hard tissue formation begins.

Front 22

When is the crown complete for the primary teeth eruption patterns?

Back 22

within first year (3 1/2 to 11 months.)

Front 23

What is the eruption range? Ages?

Back 23

from 6 months- 2 years

Front 24

What is the order of eruption during the eruption range?

Back 24

mandibular incisors (centrals before laterals), maxillary incisors (centrals before laterals), first molars (12 to 14 (mandibular before maxillary)), Canines (mandibular before maxillary), second molars (mandibular before maxillary).

Front 25

T/F During eruption of the primary dentition the mandibular erupts before the maxillary.

Back 25

True

Front 26

When comparing the eruption dates of incisors of the primary dentition do centrals or laterals erupt first? mandibular or maxillary erupt first?

Back 26

centrals first and mandibular first

Front 27

What are the first teeth to erupt in the primary dentition?

Back 27

Mandibular central incisors?

Front 28

What are the last teeth to erupt in the primary dentition?

Back 28

Maxillary second molars.

Front 29

T/F the canines erupt before first molars.

Back 29

F, canines erupt AFTER 1st molars and BEFORE 2nd molars.

Front 30

What is the 5th tooth to erupt in the primary dentition? During what month does it erupt?

Back 30

mandibular first molar - at 12 mo.

Front 31

What teeth erupt 2,3,and4? What are their names and at what month do they erupt?

Back 31

2nd - mandibular lateral incisor - 7 mo.
3rd - maxillary central incisor - 7 1/2 mo.
4th - maxillary lateral incisor - 9 mo.

Front 32

What teeth erupt 6th, 7th, 8th, and 9th? What are their names and at what months do they erupt?

Back 32

6th - maxillary first molar - 14 months
7th - mandibular canine - 16 mo.
8th - maxillary canine - 18 mo.
9th - mandibular 2nd molar - 20 mo.

Front 33

At what age does the 2nd maxillary molar erupt?

Back 33

24 months - 1 year

Front 34

When are the roots complete of the primary dentition?

Back 34

1 1/2 to 3 years.

Front 35

When does the hard tissue formation begin for permanent teeth?

Back 35

at BIRTH (first molars) to 3 year (second molars); (7-10 years for third molars)

Front 36

When is the crown complete for the permanent dentition?

Back 36

approximately eruption year minus 3 years.

Front 37

What is the eruption range for the permanent dentition?

Back 37

6 - 12 years - for all except 3rd molars.

Front 38

What teeth erupt from 6 - 9 years?

Back 38

first molars and all incisors.

Front 39

What is the eruption range from 6 - 9 years for the first molars and incisors of the permanent dentition?

Back 39

mandibular centrals and all first molars @ 6 years then mandibular laterals then maxillary centrals then maxillary laterals

Front 40

What teeth erupt during 9 - 12 years?

Back 40

canines and premolars

Front 41

What is the eruption pattern from 9 - 12 years for permanent dention?

Back 41

first is mandibular canine, last is second premolars and maxillary canine

Front 42

What erupts at 12 years of age?

Back 42

second (12 year) molars

Front 43

What erupts during the age of 17 - 21?

Back 43

third molars

Front 44

When is the root complete in the permanent dentition?

Back 44

approx. eruption date plus 3 years.

Front 45

During the eruption of the permanent dentition what teeth tie for the 1st tooth to erupt?

Back 45

Mandibular Central incisors, and max and mand. 1st molars (well mand 1st molars are before incisors - "6 yr. molars")

Front 46

What teeth tie for 2nd eruption in the permanent dentition? what age?

Back 46

Central maxillary incisors, mandibular lateral incisors, 7-8 years old

Front 47

What teeth come in 3rd in the permanent dentition and at what age?

Back 47

maxillary lateral incisors - 8-9 years old

Front 48

What teeth come in 4th in the permanent dentition and at what age?

Back 48

the mandibular canines, 9-10 years old

Front 49

What teeth tie for 5th during the eruption of the primary dentition? at what age do they erupt?

Back 49

maxillary 1st premolars (10-11 yrs) mandibular 1st premolars (10-12 yrs) maxillary 2nd PM (10-12 yrs.)

Front 50

What teeth erupt 6th in the permanent dentition? at what age?

Back 50

The maxillary canines ( 11-12 yrs) and the 2nd mand. PM (11-12)

Front 51

What teeth erupt 7th in the permanent dentition?

Back 51

Max 2nd molar (12-15 yrs) mand 2nd molar (11-13 yrs)

Front 52

What teeth are last (8th) to erupt in the permanent dentition?

Back 52

3rd molars ( from 17-21 years)