Maxillary and Mandibular Incisors Quiz 3

maxillary central incisors numbers

8 and 9

Maxillary lateral incisors numbers

7 and 10

Mandibular central incisors numbers

24 and 25

Mandibular lateral incisors numbers

26 and 23

How to name a tooth

1. Permanent or primary

2. Arch

3. Right or left

4. Class (canine/molar etc)

Max. Incisors are more ___ on the distal than the mesial

Rounded

Mesial contact area of max central incisor

Incisal 1/3

Distal contact area of the maxillary central incisor

Halfway between incisal 1/3 and middle 1/3

The cingulum is created by which lobe?

4th

The CEJ has more of a dip on the _____ than the ____

Mesial than distal

Roots of incisors are typically wider ___ than ___

Faciolingually than mesiodistally

Incisal roots may bend ___

Distally

The lingual surface of incisors of which arch are smoother?

Mandibular

Mandibular incisors have a ___ root-to-crown ratio than maxillary

Larger

Max central incisor is what shape

Trapezoidal

Max lateral incisor is what shape

Round

Mesioincisal line angle is ___ than the distoincisal angle (on maxillary central incisors)

Sharper

Maxillary central incisor has a very small ______

Root-to-crown ratio

Does the max central incisor root bend?

No

Max central incisors cingulum bends toward…

Distal

Mesial marginal ridge is ___ than distal marginal ridge of max incisors

Longer

For all anteriors, the CEJ curve is more profound on what end?

Mesial

Height of curvature (facial and lingual) for both max central and lateral is in the

Cervical third

Mandibular Central incisor has the ____ crown in the mouth

Narrowest

Mandibular lateral incisor roots tilt slightly toward the ___

Distal

Which edge of the mandibular lateral incisor is more rounded?

Distoincisal

Which edge of the mandibular central incisor is more rounded?

Neither, they are right angles and symmetrical

Where are the mesial and distal contacts of a mandibular central incisor?

Both are in the incisal 1/3

Where are the mesial and distal context of a mandibular lateral incisor?

Both in the incisal 1/3, distal is closesr to the cervical 1/3

Mandibular incisor roots are wider ___ than ___

Faciolingually than mesiodistally

Mandibular lateral incisor cingulum is slightly _____ to the root axis line

Distal

Cingulum is ___ prominent on mandibular than maxillary

Less

Mandibular lateral incisor has WHAT on the incisal edge that the centrals do not?

Distolingual twist

For a mandibular incisors, root depressions are more distinct on the mesial or distal?

Distal

Max centrals erupt ___ laterals

Before

Mand. Central incisors erupt ___ laterals

After

Max. Lateral incisors line angles are both ___

Rounded

Compared to maxillary, mandibular incisors incisal edges curve ___

Lingually

Mandibular incisors have distal/mesial contacts closer cervically or incisally than the maxillary incisors?

Incisally

Compared to maxillary incisors, mandibular incisors have a ____ root-to-crown ratio

Larger