Mandibular Incisors Flashcards
- When do the mandibular central incisors erupt?
- When are they initially calcified
- 6-7 yrs
- 3-4 mo
- When do the mandibular lateral incisors erupt?
- When are they initially calcified?
- 7-8 yrs
- 3-4 mo
Which teeth are bigger, the lateral or central mandibular incisors?
Laterals (centrals are smallest teeth in the mouth)
Which have a larger crown length, lateral or central mandibular incisors?
They have the same crown length
Which have a longer root length, mandibular centrals or laterals?
Laterals (since crown length is the same for central and lateral, root length must be longer for laterals)
Which has a larger mesiodistal crown width, mandibular centrals or laterals?
Laterals (barely, .5mm more)
- Mandibular incisors have the smallest ______ dimension of all the teeth
- Which tooth is smaller, central or lateral mandibular incisor?
- ______ on the incisal ridge are worn soon after eruption
- Mesiodistal Dimension
- Central (smallest tooth of the mouth)
- Mammelons
- What is the outline form of the mandibular central incisor from the labial aspect?
- The incisal edge is usually _____ after wear
- Trapezoidal
- Straight
Where are the mesial and distal contact points of the mandibular central incisors?
The incisial third for both! They are at the same height.
On the mandibular central incisors, the lingual aspect has a very weakly developed ______ ridges
Marginal
On the mandibular central incisor, describe the size and orientation of the cingulum
Minimal in size, centered on the lingual aspect
From the proximal aspect, what is the crown outline form of the mandibular central incisors?
Triangular
From the proximal aspect, on the mandibular central incisor, where is the height of contour lingually and facially?
Cervical Third
