Proximal Contacts, Heights of Contour, Root Depressions, Lobes, Cusps, and Pulp Horns

Question 1

Proximal contact of mesial surface of maxillary central incisors

Answer 1

Incisal Third

Question 2

On all teeth the distal proximal contacts are more cervical than the mesial proximal contacts except for these teeth, where they are at the same height

Answer 2

Mandibular central incisors

Question 3

On all teeth the distal proximal contacts are more cervical than the mesial proximal contacts except for these teeth, where the mesial contact is more cervical.

Answer 3

Mandibular first premolars

Question 4

For anterior teeth, most contacts are in the incisal third except these teeth (and contacts)

Answer 4

Distal contacts of maxillary lateral incisors and canines

Question 5

For posterior teeth, the mesial and distal contacts are closer to this area.

Answer 5

Middle third

Question 6

No contact of any tooth is cervical to this area

Answer 6

Middle third

Question 7

The facial crest of curvature for all teeth in in this area

Answer 7

Cervical third

Question 8

The lingual crest of curvature for all anterior teeth is in this area

Answer 8

Cervical third

Question 9

The lingual crest for all of these teeth in in the cervical third

Answer 9

Anteriors

Question 10

The lingual crest of curvature falls in this area for all anterior teeth

Answer 10

Cervical third, on the Cingular

Question 11

The lingual crest of curvature for all posterior teeth falls in this area

Answer 11

Middle third

Question 12

The lingual crest of all of these teeth falls in the middle third

Answer 12

Posterior

Question 13

What causes the posterior teeth to have a more occlusal lingual crest of curvature

Answer 13

Lingual tilt

Question 14

These teeth are less likely to have root depressions

Answer 14

Maxillary incisors

Question 15

All canines, premolars, (except maxillary first premolars), and mandibular incisors have a deeper root depression on this area

Answer 15

Distal root

Question 16

This tooth has a deeper mesial root depression than distal root depression

Answer 16

Maxillary first premolar

Question 17

This premolar may be bifurcated

Answer 17

Maxillary first premolar

Question 18

All anterior teeth and premolars will have at least this many lobes that form them

Answer 18

4

Question 19

Which premolar may be formed from 5 lobes

Answer 19

Mandibular second premolar

Question 20

If a maxillary first molar has a cusp of Carabelli, how many lobes did it form from?

Answer 20

5

Question 21

All second molars form from this many lobes

Answer 21

4

Question 22

How many lobes do mandibular first molars form from?

Answer 22

5

Question 23

What is the general rule on the number of pulp horns a posterior tooth will have

Answer 23

1 per functional cusp

Question 24

This posterior tooth may have a nonfunctional lingual cusp

Answer 24

Mandubular first `premolar

Question 25

Will the cusp of Carabelli have a pulp horn associated with it?

Answer 25

No, it is nonfunctional

Question 26

What is the general rule on the number of pulp horns an anterior tooth will have

Answer 26

3 per incisor, except for maxillary lateral, which varies

Question 27

Maxillary molars will have a mesial root depression on this root.

Answer 27

Mesiobuccal

Question 28

Which root of mandibular molars has both mesial and distal depressions?

Answer 28

Mesial

Question 29

Which mandibular tooth is unlikely to have a mesial root depression?

Answer 29

Second premolar