Lesson 2

Question 1

Developmental lobes are active ______ cells that create _______ or mounds that are later referred to as ______

Answer 1

Growth
Projections
Cusps

Question 2

You have to have at least _____ lobes to create a healthy tooth

Answer 2

4

Question 3

Incisors, premolars, and molars all have 4 developmental lobes, what are the exceptions?

Answer 3

Mandibular 2nd premolar = 5 lobes
Mandibular 1st molar = 5 lobes
Maxillary 1st molar = 5 lobes

Question 4

Cusps are _______

Answer 4

bumpy

Question 5

_______ are an extra lump of enamel that looks like a bump on the tooth

Answer 5

Tubercle

Question 6

Define Cingulum

Answer 6

A lump of enamel on the back of an incisor

Question 7

Cingulum’s are more prominent on _________ teeth

Answer 7

Maxillary

Question 8

Define Marginal Ridge

Answer 8

Rim around back or top of a tooth

Question 9

______ are bumps on the incisal edge of newly erupted teeth

Answer 9

Mamelons

Question 10

Define pit

Answer 10

A deep indentation of a tooth

Question 11

______ are shallow depressions in the tooth

Answer 11

Fossae

Question 12

When talking about tooth eruption ________ teeth always erupt before _______

Answer 12

Mandibular

Maxillary

Question 13

What is the order of eruption for primary teeth?

Answer 13

Mandibular central incisors at 6 months
Mandibular lateral incisors at 7 months
Maxillary central incisors at 8 months
Maxillary lateral incisors at 9 months
Mandibular 1st molar at 12 months
Maxillary 1st molar at 14 months
Mandibular cuspid at 16 months
Maxillary cuspid at 19 months
Mandibular 2nd molar at 20 months
Maxillary 2nd molar at 24 months

Question 14

All primary teeth should be erupted by what age?

Answer 14

2 years old (24 months)

Question 15

What is the order of eruption for permanent teeth?

Answer 15

Mandibular and Maxillary 1st molar at 6 years old
Mandibular central incisor at 6 years old
Maxillary central incisor at 8 years old
Mandibular lateral incisor at 8 years old
Maxillary lateral incisor at 9 years old
Mandibular cuspid at 10 years old
Maxillary cuspid at 12 years old
Mandibular and Maxillary 1st premolar at 11 years old
Mandibular and Maxillary 2nd premolar at 12 years old
Mandibular 2nd molar at 11 years old
Maxillary 2nd molar at 12 years old
Mandibular and Maxillary 3rd molars at 18 years old