Maxillary Central Incisor Arch Traits

Question 1

width of max. incisor compared to mandible incisors

Answer 1

width is greater than mandible incisors

Question 2

what features are prominent?

Answer 2

marginal ridges, cingulum, and lingual pit

Question 3

Root dimensions?

Answer 3

equal

Question 4

when viewed incisally what surface is more rounded

Answer 4

labial surface

Question 5

Crown is wider in what directions?

Answer 5

mesial-lingually more than lingual-facially

Question 6

When do max. central incisors erupt?

Answer 6

7-8 years

Question 7

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

Answer 7

10 years old

Question 8

widest part of central incisor?

Answer 8

mesial-distal

widest dimension of any incisor

Question 9

Mesial-Incisal angle shape

Answer 9

at a right angle

Question 10

Distal-Incisal angle shape

Answer 10

slightly rounded

Question 11

Mesial outline (height of contour) from Labial View

Answer 11

contact close to incisal

Question 12

Distal outline (height of contour) from Labial View

Answer 12

more convex

contact at junction of incisal and middle 1/3

Question 13

what may be found on facial surface of the tooth?

Answer 13

developmental grooves

Question 14

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

Answer 14

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

Question 15

how many roots?

Answer 15

one

Question 16

Crown profile from Lingual View

Answer 16

converges toward lingual

Question 17

what does the incisal edge do with age?

Answer 17

slopes with age

Question 18

Marginal ridges from the lingual view are parallel to what?

Answer 18

long axis of the tooth

Question 19

CEJ shape from Lingual View

Answer 19

heavy curve to it

Question 20

CEJ shape from Mesial View

Answer 20

steep

Question 21

What lines up with the long axis from the mesial view

Answer 21

incisor edge lines up

also called axial loading

Question 22

Crests of Curvature (height of contour) from mesial view

Answer 22

Both aspects are in the cervical 1/3

Question 23

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

Answer 23

in the cervical 1/3

Question 24

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

Answer 24

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

Question 25

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

Answer 25

facial>lingual

Question 26

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

Answer 26

ML>DL

Question 27

from incisal view, cingulum is placed where to midline?

Answer 27

distal

Question 28

what is very prominent from the incisal view

Answer 28

mesial marginal and distal marginal ridge

Question 29

what are the maxillary centrals also called?

Answer 29

the age tooth