Multiphase - Class II
Patient 1
Problem: Marked upper jaw and tooth protrusion with crowding in the upper and lower and small upper lateral incisors.
Solution: Headgear to minimise the upper protrusion then extraction in the upper to alleviate the crowding with braces.
Notes: Upper small lateral incisors were built up by the dentist.
Patient 3
Problem: Marked crowding and bottom jaw back.
Solution: Expansion plate for a few months followed by functional appliance worn at night until all permanent teeth erupted and then braces to align the teeth.
Notes: The first phase of treatment improved the bite and brought the bottom jaw forward.
Patient 4
Problem: Marked jaw discrepancy with the bottom jaw back and excess overjet .
Solution: Expansion followed by functional appliance and headgear to decrease the bottom jaw retrusion and upper jaw protrusion; then braces for a short time to achieve an ideal alignment.
Note: The first phase of treatment almost resulted in no further treatment being required, with a marked improvement of the relationship.