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Progress in Orthodontics

Table 5 Crown and root tipping in the distal position of the mini screw

From: Maxillary anterior en masse retraction using different antero-posterior position of mini screw: a 3D finite element study

Movement

Tooth

Axis

Height of anterior power arm

0 mm

3 mm

6 mm

9 mm

Crown

Central

Z

9.89E−07

5.79E−07

3.57E−08

−2.05E−07

Lateral

Z

1.06E−06

7.06E−07

6.19E−08

−2.32E−07

Canine

Z

8.50E−07

5.05E−07

2.90E−08

−1.38E−07

Central

Y

1.06E−06

7.37E−07

5.36E−07

2.28E−07

Lateral

Y

1.27E−06

7.58E−07

5.72E−07

2.91E−07

Canine

Y

9.31E−07

6.51E−07

4.46E−07

1.61E−07

Apical

Central

Y

−7.45E−07

−5.43E−07

−2.51E−07

1.12E−07

Lateral

Y

−7.74E−07

−6.19E−07

−3.12E−07

1.40E−07

Canine

Y

−6.69E−07

−4.52E−07

−1.28E−07

8.39E−08

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