Oral Anatomy Lecture 1

Question 1

Two names for “baby” teeth

Answer 1

Primary, deciduous

Question 2

In the universal numbering system, what would the left maxillary first premolar be?

Answer 2

12

Question 3

In the universal numbering system, what would the second maxillary molar in primary dentition be?

Answer 3

J

Question 4

In the Palmer notation system, what would tooth 2 in the upper left quadrant be?

Answer 4

Left maxillary lateral incisor.

Question 5

In the Palmer notation system, what would tooth 4 be in the lower right quadrant

Answer 5

Right mandibular first premolar

Question 6

In the international world dental federation notation system, what are the four numbers (two permanent, two primary) that could be assigned to the mandibular first molar

Answer 6

Permanent: 36, 46

Primary: 74, 84

*quadrants go clockwise starting with the right maxillary

Question 7

The region of the CEJ is also known by what anatomical term?

Answer 7

Cervical

Question 8

What forms cementum?

Answer 8

Cementoblasts

Question 9

What is enamel made of primarily?

Answer 9

95% hydroxyapatite

Question 10

What forms dentin?

Answer 10

Odontoblasts

Question 11

What primarily composes dentin?

Answer 11

70% calcium hydroxyapatite

Question 12

What is the small opening located at the tiip of the root?

Answer 12

apical foramen

Question 13

What is the portion of pulp that runs into dentin?

Answer 13

Pulp chamber

Question 14

What is the thinner portion of pulp closer to the root?

Answer 14

Pulp canal

Question 15

Anatomic crown is considered to be above what plane?

Answer 15

CEJ

Question 16

The anatomic root is covered with what?

Answer 16

cementum

Question 17

What’s meant by the term clinical crown

Answer 17

The portion of the tooth that is visibly exposed during eruption

Question 18

The surrounding tissue of the tooth is called what?

Answer 18

Periodontium

Question 19

For naming surfaces, what’s the numbering hierarchy?

Answer 19

1- mesial
2 - distal
3 - facial/labial/buccal
4 - lingual
5 - occlusal/incisal
6 - cervical/apical

Question 20

What are the optimum and minimum root/crown ratios?

Answer 20

Optimum - 2:3

Min - 1:1