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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