Maxillary Central Incisor Flashcards Preview

Dental Anatomy > Maxillary Central Incisor > Flashcards

Flashcards in Maxillary Central Incisor Deck (16)
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1
Q

Is this tooth wider mesiodistally, or labiolingually?

A

mesiodistally

2
Q

What are the mesial and distal HOCs of the central incisors?

A

Mesial: incisal third -
Distal: between incisal and middle third

3
Q

What are the facial and lingual HOCs of the central incisors?

A

Facial: cervical third - Lingual: closer to cervical line

4
Q

How would you describe the distal surface when compared to the mesial surface?

A

the distal surface is more rounded and results in a concavity or notch at the CEJ area.

5
Q

What may be evident on a newly erupted central incisor?

A

mesial, central, and distal mamelons. they ware off after a few weeks

6
Q

What does the presence of mamelons in older patients show signs of?

A

possible malocclusion or anterior open-bite

7
Q

What characteristic of the facial surface of the central incisor is important to replicate for aesthetic purposes?

A

the mesial and distal developmental grooves

8
Q

What do the facial developmental grooves separate?

A

mesial, central, and distal facial lobes

9
Q

What does the proximal surface refer to?

A

mesial or distal surface

10
Q

how is the incisal ridge positioned with respect to the root?

A

centrally

11
Q

Describe the lingual surface of the maxillary central incisor.

A

It is concave, except for the cervical third which presents a cingulum.

12
Q

Where is the cingulum on the max. central incisor?

A

along the lingual cervical line, slightly displaced to the distal

13
Q

What are the marginal ridges on the central incisors?

A

marginal ridges are presented on the lingual surface of the tooth, emanating from the cingulum toward the incisal, on the mesio and disto lingual line angles

14
Q

Which marginal ridge is longer?

A

the mesial

15
Q

What is formed by the cingulum, mesio/distolingual marginal ridges, and incisal ridge?

A

the lingual fossa

16
Q

How are the cervical lines of the mesial and distal compared to each other?

A

the cervical line of the distal is less curved toward the incisal than that of the mesial cervical line.