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Table 5 The horizontal discrepancies according to implant position in the arch, using the Mann-Whitney U test

From: A prospective clinical study on implant impression accuracy

Horizontal discrepancies

Position

N

Open tray

Closed tray

P value

Mean

Median

S.D

Mean

Median

S. D

Maxilla

Anterior

9

0.069

0.040

0.055

0.047

0.020

0.050

0.110

Posterior

9

0.098

0.040

0.093

0.101

0.050

0.090

0.136

Total

18

0.084

0.040

0.075

0.075

0.035

0.070

0.584

Mandible

Anterior

4

0.030

0.035

0.022

0.063

0.079

0.030

0.999

Posterior

18

0.050

0.030

0.059

0.102

0.109

0.045

0.118

Total

22

0.0464

0.04

0.054

0.095

0.104

0.040

0.152

  1. Significance level p ≤ 0.05