Space-gaining Possibilities
Transverse uprighting/expansion 2 4
Molar derotation/distalization-upper 2 5
Molar uprighting, mostly lower 0 4
Reproximation (slenderizing) 2 6
Incisor advancement (esp. lower) 0 4
Incisor reangulation/relocation (varies) (-3) (3)
Growth modification (Herbst, facemask) 0 3
Potential space gain: 6mm 26mm