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Table 2 The comparison of the apical distance deviations between two surgery approaches (Group SG vs. FH)

From: Accuracy assessment of implant placement with versus without a CAD/CAM surgical guide by novices versus specialists via the digital registration method: an in vitro randomized crossover study

Group

SG

FH

Statistical method

Difference

95% CI

P

n

Mean ± SD (mm)

n

Mean ± SD (mm)

SA

30

1.04 ± 0.48

30

1.79 ± 0.70

paired-samples T test

-0.75

-1.07 ~ -0.41

< 0.001***

SB

30

1.14 ± 0.61

30

1.48 ± 0.61

-0.34

-0.68 ~ 0.01

0.053

S

60

1.09 ± 0.55

60

1.63 ± 0.67

-0.54

-0.77 ~ -0.30

< 0.001***

IA

5

1.04 ± 0.40

5

0.87 ± 0.25

Wilcoxon test

0.17

/

0.686

IB

5

0.71 ± 0.41

5

0.69 ± 0.36

0.02

/

1.000

I

10

0.88 ± 0.42

10

0.78 ± 0.31

0.10

/

0.646

  1. ***p < 0.001