MDS PREP
Approximately what percentage of root ca is completed at the time the tooth erupts?
1. 25
2. 50
3. 75
4. 90
Dental Anatomy
Answer: 2
Which of the following is true regarding maxillary molars?
1. Curve inward more sharply from the medial plane on the buccal than do the mandibular molars
2. By their arrangement and design allow room for the powerful masseter muscle.
3. Are set somewhat lingual to the premolars
4. Show a convergence of their buccal surfaces mesially
Dental Anatomy
Answer: 2
Which of the following is the first formed
portion of the dentin?
1. Circumpulpal
2. Intertubular
3. Transparent
4. Mantle
Dental Anatomy
Answer: 4
Which of the following anatomic facts should be considered before scaling a permanent maxillary canine?
1 Presence of proximal groove on dis tal surface
2. Presence of proximal groove on me sial surface
3. Presence of a mesial development depression on the crown
4. Presence of proximal grooves on both mesial and distal surfaces
Dental Anatomy
Answer: 4
The anatomy of the mesial surface of which
of the following teeth is MOST likely to cause
difficulty in restorative dentistry?
1. Maxillary central incisor
2. Maxillary first premolar
3. Maxillary second premolar
4. Mandibular first molar
Dental Anatomy
Answer: 2
Specific gravity of enamel is:
1) 1.9
2) 2.2
3) 2.5
4) 2.8