Frequent Problems in Primary and Mixed Dentition

Question 1

6 problems which should be recognized early

Answer 1

• Loss of dental tissue
• Development of malocclusions
• Ectopic eruption of the first permanent molars
• Ankylosis of primary molars
• Ectopic eruption of the permanent canines
• Missing/supernumary teeth

Question 2

3 types of orthodontic treatments for children

Answer 2

• Preventive
• Interceptive
• Corrective

Question 3

Goal of preventive orthodontics

Answer 3

Space maintenance

Question 4

2 goals of interceptive orthodontics

Answer 4

• Treatment of non-skeletal problems
• Treatment of skeletal problems

Question 5

4 reasons to treat non-skeletal problems

Answer 5

• Crowding in mixed dentition
• Cross-bites
• Oral habits
• Space regaining

Question 6

3 clinical indicators of impending crowding

Answer 6

• Premature exfoliation of primary teeth (lateral incisors)
• Significant anterior crowding
• Ectopic eruption of permanent lateral incisors (look for erosion/resorption of primary canines)

Question 7

Difference in width between each permanent and primary incisor

Answer 7

1 - 3mm