Dental Anatomy Primary Dentition Flashcards Preview

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Flashcards in Dental Anatomy Primary Dentition Deck (31)
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1

primary teeth are _(more/less)_ mineralized than permanent teeth, and are consequently _(more/less)_ worn

less mineralized, more worn

2

the difference in space from the primary to the permanent dentition is ___mm

2-4mm

3

mamelons that remain beyond the age of 10 generally indicate what type of bite pattern?

open bite

4

calcification of primary roots in normally completed by age ___

3-4 years

5

what is the usual pattern of eruption for primary teeth?

-centrals, laterals, 1st molars, canines, 2nd molars

-front to back except canine

-lowers before uppers except laterals

-girls before boys

-slim before stocky

6

where does the primate space develop in maxillary primary dentition? what about mandibular primate space?

-maxillary - between lateral and canine

-mandibular - between the canine and the 1st molar

7

what is the most frequent cause of primary spacing for the anterior teeth?

growth of the dental arches

8

the direction of primary enamel rods in the cervical 3rd is in what direction? what about permanent?

-primary - occlusal direction

-permanent - apical direction

9

primary molar roots are _(more/less)_ divergent than permanent molar roots

more

10

do primary or permanent molars lack identifiable root trunks?

primary

11

which primary tooth has the smallest faciolingual crown dimension?

primary mandibular central incisor

12

which primary tooth is the most bilaterally symmetrical?

mandibular central incisor (same for permanent dentition)

13

in delayed resorption of primary incisors, the permanent incisors usually eruption in what direction?

lingual

14

the primary central incisor has a prominent cervical ridge on what locations?

both the facial and lingual surfaces

15

from the facial view, the crown of a primary canine has a mesial cusp ridge that is _(longer/shorter)_ than the distal cusp ridge

longer

this means that the cusp tip will be offset to the distal

16

the primary maxillary 1st molar has a crown that somewhat resembles what permanent tooth?

a premolar

17

the primary maxillary 1st molar has roots that resemble what permanent tooth?

maxillary molar

18

which primary maxillary tooth has the most prominent cervical ridge, and what surface is it on?

maxillary 1st molar on the MF surface

19

which primary tooth generally has an oblique ridge?

maxillary 2nd molar

20

the primary maxillary 2nd molar is the only primary posterior tooth to have what 3 things?

-oblique ridge

-transverse ridge (primary mandibular 1st molar has this as well)

-DL groove

21

the primary ___ molar generally exhibits a cusp of carabelli

maxillary 2nd molar

22

what are the last primary teeth to erupt?

maxillary 2nd molars

23

the primary maxillary 2nd molar exhibits _(more/less)_ cusps than the primary maxillary 1st molar

more

24

the primary maxillary 2nd molar most resembles what permanent tooth?

maxillary 1st molar

25

the primary tooth that has the most distinctly prominenet facial cervical ridge is the ___

mandibular 1st molar

(vs maxillary 1st molar, which has the most prominent cervical ridge of the maxillary teeth only)

26

from the facial view of a primary mandibular 1st molar, the CEJ is most apically positioned in what area?

the mesial 3rd

this is a result of its prominent facial cervical ridge

27

the primary mandibular 1st molar usually exhibits a _(mesial/distal)_ triangular fossa

distal

28

which primary tooth has the most distinct transverse ridge?

mandibular 1st molar

29

what permanent tooth does the primary mandibular 1st molar resemble?

none

30

which primary teeth differ most from permanent teeth?

mandibular 1st molars