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Table 4 Paired t-Test for the difference (T2-T1)

From: Favourable dentoalveolar changes after lower premolar extractions for Class III camouflage with completely customized lingual appliances

Variable

N

Mean

SD

95% CI

Min

Max

p-value

Wits in mm

25

1.3

2.0

(0.50, 2.13)

-3.6

5.7

0.003

SPP-OP in °

25

1.2

2.5

(0.17, 2.23)

-3.5

7.0

0.024

ANB in °

25

0.9

1.0

(0.50, 1.34)

-1.5

2.5

0.000

Interincisal angle in °

25

-2.2

9.2

(-6.00, 1.60)

-18.5

12.5

0.243

Lower incisor/GoMe in °

25

1.9

7.2

(-1.12, 4.84)

-9.0

19.0

0.210