Primary Tooth Morphology

Question 1

What numbers correspond to the quadrants of a child’s mouth?

Answer 1

5 , 6 , 7 , 8

Question 2

Describe the features in a 55 or a 65 (upper molar)

Answer 2

Transverse ridge.

3 roots; 2 buccal and 1 palatal.

Question 3

Describe the features in a 75 or a 85 (lower molar)

Answer 3

5 cusps; 3 buccal and 2 palatal

2 roots

Question 4

Describe the features in a 51 or a 61 (upper incisor)

Answer 4

Mesial surface of the crown is straighter

Root leans distally.

Question 5

Describe the features in a 53 or a 63 (upper canine)

Answer 5

Mesial edge is straighter

Distal edge flares soon after the ADJ

Question 6

Describe the features in a 54 or a 64 (upper premolar)

Answer 6

Has a prominent mesiobuccal tubercle

Observation; shape looks more like an adult/permanent premolar

Question 7

Describe the features in a 74 or a 84 (lower premolar)

Answer 7

(Observation; Looks less like an adult premolar, more molar shaped)