Question: Beginning of eruption of permanent tooth starts_____________?

• 1. After completion of root
• 2. When apical third root is still to be formed
• 3. When half of the root is still to be formed
• 4. when root formation starts

Question: Root completion of the mandibular first molar takes place by the age_______________?

• 1. 7-8 years
• 2. 8-9 years
• 3. 9-10 years
• 4. 10 – 11 years

Question: First evidence of calcification of maxillary permanent central incisors occurs at_____________?

• 1. 3-4 months
• 2. 10-12 months
• 3. 2-3 years
• 4. 3-4 years

Question: Primary canine erupts______________?

• 1. After D
• 2. Before B
• 3. After B
• 4. After E

Question: In the majority of situations, the first decidous tooth to erupt is the______________?

• 1. Mandibular central incisor
• 2. Mandibular first molar
• 3. Maxillary central incisor
• 4. Maxillary second molar

Question: Which of these teeth are highly sturdy and usually the last ones to be lost ?

• 1. First molar
• 2. Central incisors
• 3. Canines
• 4. Premolars

Question: Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?

• 1. Superior and facial
• 2. Inferior and facial
• 3. Superior and lingual
• 4. Inferior and lingual

Question: The root completion of permanent teeth is achieved after __________ years o eruption?

• 1. 1-1½
• 2. 2-3
• 3. 3-4
• 4. 4-5

Question: Growth of all permanent teeth except last molars is completed by___________?

• 1. 6 years
• 2. 8 years
• 3. 12 years
• 4. 17 years

Question: Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?

• 1. Only molars
• 2. All teeth except third molars
• 3. 1,2,4,5,6,7 in all quadrants
• 4. 1,2,6 in all quadrants