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

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