General Tooth Morphology

Question 1

Morphological divisions of the crown of a tooth

Answer 1

Lobe

Question 2

What separates the lobes of a tooth?

Answer 2

Developmental grooves

Question 3

Cusps and mamelons are representative of what?

Answer 3

Lobes

Question 4

How many lobes are anterior teeth composed of?

Answer 4

Four
3 facial
1 lingual - cingulum

Question 5

How many lobes do premolars have?

Answer 5

Most have 4 - 3 buccal, 1 lingual

Mandibular second premolars have five - 3 buccal, 2 lingual

Question 6

How many lobes to maxillary molars have?

Answer 6

4

2 buccal, 2 lingual

Question 7

Describe the developmental grooves of the mandibular second premolars

Answer 7

Separate the five lobes
Central groove - separates facial from lingual lobes
Lingual groove - separates the lingual lobes

Question 8

Describe the developmental grooves of the maxillary molars

Answer 8

Separate the 4 lobes
Central groove - separates buccal from lingual
Buccal groove - separate buccal lobes
Lingual groove - separates lingual lobes

Question 9

How many lobes do the mandibular first molars have?

Answer 9

5
2 buccal
2 lingual
1 distal

Question 10

How many lobes do the mandibular 2nd molars have?

Answer 10

4
2 buccal
2 lingual