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Flashcards in 300 Dental Anatomy Facts Deck (117)
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1

Primary teeth are MORE or LESS mineralized that permanent teeth?

Less

May appear more worn

2

What is the difference in space between the primary dentition and permanent dentition

2-4mm

Primary dentition is more square and squatty shaped

3

Mammelons that remain after age 10 indicate what?

An open bite

Typically the dention will fall into lateral excursion and wear off the mammelons by teeth occluding in a closed bite

4

When does calcification of primary dentition complete?

Age 3-4 years old

5

What is the order of eruption for primary dentition?

Centrals
Laterals
1st molars
Canines
2nd molars

6

Erruption:
Front to back besides canines
Manibulars before maxillarys except _____

Laterals

7

Maxillary PRIMATE space

Between the lateral and canine

8

Mandibular PRIMATE space

Between the canine and the 1st premolar (adults)

Between the canine and 1st molar (children)

9

What is the primate space?

Space created to accommodate the larger jaw and larger adult dentition

10

What is primary spacing?
And what is it caused by?

Spacing in the anterior teeth due to the growth of dental arches.

Making room for permanent dentition
NORMAL SPACING

11

Primary enamel rods are oriented in which direction in the cervical 1/3 of the crown?

OCCLUSALLY

Permanent enamel rods are oriented apically in the cervical 1/3

12

Primary molars roots differ from permanent molars roots because they are more _______

Divergent

13

Primary molars lack or have a small root _____

Trunk

14

The primary CENTRAL INCISOR has the smallest ___________ crown dimension

Faciolingual

15

The primary and permanent MANDIBULAR CENTRAL INCISOR

Most bilaterally symmetrical tooth

16

Delayed resorption of primary incisors the permanent incisors erupt ?

Lingually

"Shark teeth"

17

The primary central incisor exhibits a prominent lingual and facial _______ ________

Cervical ridge (bulge)

18

PRIMARY canine mesioincisal edge is ______ than the distoincisal edge

LONGER

19

The PRIMARY canine cusp tip is set off towards the _______

distal

Gives the longer mesioincisal edge

20

The 1st PRIMARY MAXILLARY MOLAR crown resembles what permanent tooth?

Maxillary premolars

21

The 1st PRIMARY MOLAR roots resembles what permanent tooth?

Maxillary molars

3 roots --> DB, MB, Palatal
** just more divergent**

22

The cervical ridge on the PRIMARY MAXILLARY 1st MOLAR is most prominent where?

Mesial Facial surface

It is NOT the most prominent cervical ridge

23

Which primary MAXILLARY tooth has the most prominent cervical ridge?
Where is it located?

Primary maxillary 1st molar

Located on the MF surface

24

Which tooth OVERALL has the most prominent cervical ridge?

MANDIBULAR first molar

located on the MF surface

25

Which primary tooth has an oblique ridge?

Primary 2nd MAXILLARY Molar -- it is the only primary tooth

26

Which primary tooth has a DL groove, transverse ridge, and an oblique ridge?

Primary 2nd MAXILLARY molar

27

Which primary tooth exhibits a cusp of carabelli?

Primary 2nd MAXILLARY molar

28

What permanent tooth does the primary 2nd MAXILLARY molar resemble?

Permanent 1st MAXILLARY molar

29

What is the LAST tooth to erupt in the primary dentition?

Maxillary 2nd molar

30

Which primary maxillary molar has more cusps

Maxillary 2nd molar

1st molar -- 3 cusps
2nd molar -- 5 cusps