1. The greatest amount of tooth mass anterior to the first permanent molar occurs during which developmental phase?

1. primary dentition
2. mixed dentition
3. permanent dentition

2. Under normal circumstances, a disto step primary molar relationship will lead to which permanent occlusion?

1. Class I
2. Class II
3. Class III
4. Class IV

3. In a mixed dentition with end-to-end permanent molar relationships, the desirable outcome is a Class I interdigitation. How may this occur naturally?

1. Incisor liability shift
2. End-to end shift
3. Late mesial shift
4. Leeway space

4. How does nature overcome incisor liablility?

1. Labial positioning of permanent incisors
2. Intercanine width growth
3. Interdental primary incisors
4. All of the above

5. The Moyer's mixed dentition analysis uses which set of teeth to predict the sum of the buccal segment of permanent teeth?

1. Mandibular primary incisors
2. Mandibular permanent incisors
3. Maxillary permanent incisors
4. Sum of the primary cuspid, 1^st primary molar, and 2^nd primary molar

6. The ideal serial disking patient has which of the following?

1. Class I molar relationship
2. Normal overbite and overjet
3. 3 mm. of crowding or less
4. All of the above

7. Generally, which are the first teeth to be disked in a serial disking patient?

1. Primary cuspids
2. Permanent cuspids
3. Primary 1^st molars
4. Primary 2^nd molars