Dental Anatomy Midterm 1 Unit 5 Flashcards
1
Q
What are the names of the 4 developmental lobes on anterior teeth?
A
- Distal labial lobe
- Middle labial lobe
- Mesial labial lobe
- Lingual lobe
2
Q
What are imbrication lines?
A
slight ridges that extend mesiodistally in the cervical third of enamel
3
Q
What are developmental grooves?
A
appear from the coalescing of the developmental lobes and are usually called lingual grooves
4
Q
What are supplemental grooves?
A
arise from the primary or developmental groove
5
Q
What are developmental pits?
A
pits that are located in the deepest part of each fossa
6
Q
What is a cingulum?
A
Raised rounded area on the cervical third of the lingual surface in varying degrees of prominence or developmental anteriors
7
Q
What is the shape of incisors?
A
labially = trapezoid mesially = triangle
8
Q
What is the shape of canines?
A
labially = pentagon mesially = triangle
9
Q
What is the shape of premolars?
A
buccally = pentagon mesially = trapezoid (maxillary) mesially = rhomboid (mandibular)
10
Q
What is the shape of molars?
A
buccally = trapezoid mesially = trapezoid (maxillary) mesially = rhomboid (mandibular)
