Root And Pulp Morphology

Front 1

Which pulp horn is the most prominent in premolars

Back 1

Buccal pulp horn

Front 2

Which pulp horn is the most prominent in molars

Back 2

Mesiobuccal pulp horn

Front 3

Which roots have more than one canal?

Back 3

Mesial roots of mandibular 1st and 2nd Molars

Mesiobuccal roots of maxillary 1st and 2nd Molars

Maxillary 1st premolar has 2 roots with 1 canal per root

Front 4

Type I Canal Configuration

Back 4

Single canal within one root

Front 5

Type II Canal Configuration

Back 5

Two canals converge into a single canal within one root

Front 6

Type III Canal Configuration

Back 6

Two separate canals within one root

Front 7

Type IV Canal Configuration

Back 7

One canal diverges into two separate canals apically in one root

Front 8

Which root is one and one-half times the length of the crown?

Back 8

Maxillary Central Incisors

Front 9

Describe the pulp horns of Maxillary Central Incisors?

Back 9

Pulp horns correspond to the 3 labial developmental lobes of the tooth

The central pulp horn is usually shorter than the other two and more rounded.

Front 10

Which pulp horn is shorter in Maxillary Central Incisors?

Back 10

Central pulp horn

Front 11

Which tooth has a lingual or distolingual groove extending from the enamel onto the root of the tooth

Back 11

Maxillary Lateral Incisor

Front 12

Describe the pulp horns of Maxillary Lateral Incisors

Back 12

They DO NOT have three pulp horns like Max Central incisors

Pulp chamber has 1 round form or two less sharp pulp horns (mesial and distal pulp horn)

Front 13

Which root is ribbon like?

Back 13

Mandibular Central and Lateral Incisors

Front 14

Which tooth has longitudinal depressions on both proximal surfaces?

Back 14

Mandibular Central and Lateral Incisors

Front 15

Describe the pulp horns of Mandibular Central and Lateral Incisors

Back 15

Single pulp canal and 3 pulp horns

Sometimes two canals occur, converging into a common apical foramen

Front 16

Which tooth occasionally has two canals that converge into a common apical foramen

Back 16

Mandibular Central and Lateral Incisors

Less frequently the two separate canals may lead to separate apical foramen

Front 17

Which tooth has more pronounce developmental root depressions on the distal surface?

Back 17

Maxillary Canines

Front 18

Which tooth has only one pulp horn, pointed at the incisal limit

Back 18

Maxillary Canines

Front 19

At what location is the pulp the widest in Maxillary Canines?

Back 19

Pulp is widest at the cervical 1/3 of the crown faciolingually

Front 20

Which tooth has pronounced developmental root depressions deep enough to cause 2 roots

Back 20

Mandibular Canines

A labial and lingual root can form

Front 21

Describe the pulp of Mandibular Canines

Back 21

Has a single pulp canal and one large pulp chamber
Only one pulp horn

May have two separate pulp canals that is placed labially and lingually

Front 22

Which tooth has pulp and roots that are kidney shaped?

Back 22

Cervical cross section of Maxillary 1st PM roots

Front 23

If Maxillary 1st PM have one root, how many canals are there?>

Back 23

Still has two canals

Front 24

How many roots and canals for Maxillary 1st PM have?

Back 24

Most have 2 roots and 2 canals

If one root, still has 2 canals

Can sometimes have 2 buccal roots (total of 3 roots)

Front 25

Which root depression is deeper in Maxillary 1st PM

Back 25

Mesial root depression is deeper than distal root depression

Front 26

Which pulp horn is most prominent in Maxillary 1st PM?

Back 26

Buccal pulp horn

Front 27

Which root depression is deeper on Maxillary 2nd PM?

Back 27

Distal depression is deeper than mesial

Front 28

Which pulp horn is most prominent in Maxillary 2nd PM?

Back 28

Buccal pulp horn is most prominent

Front 29

How many pulp horns do Mandibular 1st PM have?

Back 29

Only one pulp horn because of nonfunctional lingual cusp

Front 30

Which PM does not have mesial depressions?

Back 30

Mandibular 2nd PM do not have mesial depressions but have distal depressions

Front 31

Which tooth has the widest mesial root Faciolinually of all roots

Back 31

Mandibular 1st and 2nd Molars

Front 32

How many pulp horns do mandibular 1st and 2nd Molars have

Back 32

5 pulp horns

Front 33

How many canals do mandibular 1st and 2nd Molars have

Back 33

1 in distal root
2 in mesial root (mesiobuccal and mesiolingual)

Front 34

Which tooth has roots that are twice as long as the crown?

Back 34

Maxillaryy 1st and 2nd Molars

Front 35

Which root on maxillary 1st and 2nd molars have developmental depressions on both mesial and distal sides

Back 35

The mesiobuccal root of Maxillary 1st and 2nd Molars

Front 36

Which tooth has a root with a banana like curvature

Back 36

Maxillary 1st molar palatal root

Front 37

What is the order of size of Maxillary 1st Molar roots?

Back 37

Palatal>Mesiobuccal>Distobuccal

Front 38

What is the order of prominence of Maxillary 1st Molar pulp horns?

Back 38

Mesiobuccal>Mesiolingual>distobuccal>distolingual