DA Compendium page 9

Question 1

Longest teeth (from cusp tip to root tip):

Answer 1

1. Maxillary canine
2. Mandibular canine

*Both 27.0 mm

Question 2

Longest root (From CEJ to apex):

Answer 2

Maxillary canine (17.0 mm)

Question 3

Tallest crown incisogingivally (top 3)

Answer 3

1. Mandibular canine (11.0 mm)
2. Maxillary central incisor (10.5 mm)
3. Maxillary canine (10.0 mm)

Question 4

Which teeth most commonly have anomalies?

Answer 4

3rd molars

- Maxillary lateral incisors most common OTHER THAN the 3rd molars

Question 5

What are the most common anomalies? (5)

Answer 5

1. dens in dente
2. congenitally missing (2nd most common tooth)
3. Microdontia
4. Peg lateral
5. Supernumerary

Question 6

What is the most common incident of a supernumerary tooth?

Answer 6

Mesiodens

- Between maxillary central incisors

Question 7

Most likely premolar to be congenitally missing?

Answer 7

Mandibular 2nd premolar

Question 8

Most common tooth to be congenitally missing?

Answer 8

3rd molars

- Most commonly missing or malformed

Question 9

Tooth with smallest anatomical crown:

Answer 9

Mandibular central incisor

Question 10

Anterior tooth with the most symmetrical anatomical crown:

Answer 10

Mandibular central incisor

Question 11

Posterior tooth with most symmetrical anatomical crown:

Answer 11

Maxillary 2nd Premolar

Question 12

Tooth with the narrowest M-D measurement

Answer 12

Mandibular Central Incisor

Question 13

Tooth with the best developed lingual anatomy:

Answer 13

Maxillary Lateral incisor

Question 14

Only tooth with a linguogingival groove:

Answer 14

Maxillary lateral incisor

Question 15

Only tooth with a mesiolingual groove:

Answer 15

Mandibular 1st premolar

Question 16

Only tooth with a mesial marginal developmental groove:

Answer 16

Maxillary 1st premolar

*Note: Maxillary molars may have supplemental marginal grooves

Question 17

Smallest facial embrasure in the mouth or the smallest lingual embrasure in the mouth is between which two teeth?

Answer 17

The two mandibular central incisors

Question 18

T or F, The facial and lingual embrasures between the two mandibular central incisors are essentially of equal size

Answer 18

True

Question 19

What is concrescence?

Answer 19

The cementum of two proximal teeth is fused together.

Question 20

In what teeth is concrescence most common?

Answer 20

Usually associated with 2nd & 3rd molars as well as anterior teeth

Question 21

Impacted teeth is most frequently seen in what 3 teeth?

Answer 21

1. 3rd molars
2. Maxillary canines
3. Mandibular 2nd Premolars