Maxillary Central Incisor Arch Traits Flashcards Preview

Tooth Morphology > Maxillary Central Incisor Arch Traits > Flashcards

Flashcards in Maxillary Central Incisor Arch Traits Deck (29):
1

width of max. incisor compared to mandible incisors

width is greater than mandible incisors

2

what features are prominent?

marginal ridges, cingulum, and lingual pit

3

Root dimensions?

equal

4

when viewed incisally what surface is more rounded

labial surface

5

Crown is wider in what directions?

mesial-lingually more than lingual-facially

6

When do max. central incisors erupt?

7-8 years

7

Max. central incisors root completion is done by what age?

10 years old

8

widest part of central incisor?

mesial-distal
widest dimension of any incisor

9

Mesial-Incisal angle shape

at a right angle

10

Distal-Incisal angle shape

slightly rounded

11

Mesial outline (height of contour) from Labial View

contact close to incisal

12

Distal outline (height of contour) from Labial View

more convex
contact at junction of incisal and middle 1/3

13

what may be found on facial surface of the tooth?

developmental grooves

14

Where do imbrication lines occur and what do they look like?

faint elevated lines that happen at the cervical 1/3 and parallel to CEJ

15

how many roots?

one

16

Crown profile from Lingual View

converges toward lingual

17

what does the incisal edge do with age?

slopes with age

18

Marginal ridges from the lingual view are parallel to what?

long axis of the tooth

19

CEJ shape from Lingual View

heavy curve to it

20

CEJ shape from Mesial View

steep

21

What lines up with the long axis from the mesial view

incisor edge lines up
also called axial loading

22

Crests of Curvature (height of contour) from mesial view

Both aspects are in the cervical 1/3

23

All Anterior teeth have facial and lingual heights of contour where?

in the cervical 1/3

24

In the distal view of the max. C. Incisor what is the only difference?

the CEJ is not as strong of a curve because the distal contact is positioned more cervically and size is more broad

25

from the incisal view, what is more visible: facial or lingual?

facial>lingual

26

from incisal view, which outline is greater? DL or ML?

ML>DL

27

from incisal view, cingulum is placed where to midline?

distal

28

what is very prominent from the incisal view

mesial marginal and distal marginal ridge

29

what are the maxillary centrals also called?

the age tooth