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Table 3 The absolute values of crown-root maximum displacement ratio in sagittal direction in G0 and G3 and peak values of von-Mises stress of periodontal ligaments in G0 and G3

From: Effects of different designs of orthodontic clear aligners on the maxillary central incisors in the tooth extraction cases: a biomechanical study

Groups

Crown maximum displacements in sagittal direction (mm)

Root maximum displacements in sagittal direction (mm)

Absolute values of crown-root maximum displacement ratio in sagittal direction

Peak values of von-Mises stress of periodontal ligaments (MPa)

G0

-2.32E-02

7.15E-03

3.25

1.79E-01

G3-0.2

-2.13E-02

7.09E-03

3.00

1.73E-01

G3-0.3

-1.67E-02

8.07E-03

2.07

1.85E-01

G3-0.4

-1.56E-02

1.12E-02

1.40

2.78E-01

G3-0.5

-1.31E-02

1.44E-02

0.91

4.21E-01