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Table 1 Simulations of eight clinical protocols for maxillary protraction

From: The efficacy of maxillary protraction protocols with the micro-implant-assisted rapid palatal expander (MARPE) and the novel N2 mini-implant—a finite element study

Simulation Clinical protocol Location of force (bilaterally) Direction of force (to occlusal plane)
A FM [−30] Buccal surface of maxillary first molars −30
B Pal-MI-FM [−30] 3-mm lateral of the mid-palatine suture −30
C Ant-MI-FM [−15] Between roots of canine and first premolar −15
D Ant-MI-FM [−30] Between roots of canine and first premolar −30
E Ant-MI-FM [−45] Between roots of canine and first premolar −45
F Ant-MI-FM [+30] Between roots of canine and first premolar +30
G Post-MI-FM [−30] Between roots of second premolar and molar −30
H Post-MI-FM [−45] Between roots of second premolar and molar −45