A 7-year-old child has protruding chin, the lower lip overlaps the upper one. There are diastema and tremata between the lower incisors, the lower incisors overlap the upper incisors by 2/3 of the crown height. First permanent molars demonstrate Angle’s class III relation. Sagittal gap is 3 mm. The correct treatment tactics would be to:

Answer options

1. Use Bruckl’s appliance
2. Use Bynin’s appliance
3. Use Schwartz’s appliance
4. Recommend a complex of myogymnastic exercises
5. Use Angle’s slider appliance

Explanation

First of all, you should determine the diagnose protrudent chin, the lower lip overlapping the upper lip – are the typical facial signs for Mesial occlusion the lower incisors overlap the upper ones by 2/3 of crown height. Sagittal fissure is 3 mm are the typical facial signs at the examination of the oral cavity. Brueckl's appliance is recommended for children at 9-year.