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Table 1 Meanā€‰Ā±ā€‰standard deviation (SD) of coronal deviation (mm) of impression copings. Significance (Sig.) columns show the statistical groups. Same capital letters in the same row and same lower cases in the same column show no statistically significance (Pā€‰>ā€‰0.05)

From: Comparison of the accuracy of different impression procedures in case of multiple and angulated implants

Test groups

Model 1

Model 2

Model 3

Meanā€‰Ā±ā€‰SD

Sig.

Mean

Ā± SD

Sig.

Mean

Ā± SD

Sig.

Implant level impression techniques

Splinted hexed coping

SH

0,41Ā Ā±Ā 0,08

A,a

0,5Ā Ā±Ā 0,11

B,a

0,76Ā Ā±Ā 0,23

C,a

Non-splinted hexed coping

NSH

0,46Ā Ā±Ā 0,13

A,a

0,62Ā Ā±Ā 0,26

B,b

0,75Ā Ā±Ā 0,26

C,a

Splinted non-hex coping

SNH

0,39Ā Ā±Ā 0,21

A,a

0,33Ā Ā±Ā 0,04

A,c

0,35Ā Ā±Ā 0,07

A,b

Non-splinted non-hex coping

NSNH

0,42Ā Ā±Ā 0,12

A,a

0,46Ā Ā±Ā 0,08

B,d

0,5Ā Ā±Ā 0,05

B,c

Abutment level impression techniques

Splinted multi-unit coping

SMU

0,49Ā Ā±Ā 0,17

A,b

0,45Ā Ā±Ā 0,11

A,d

0,42Ā Ā±Ā 0,08

A,b

Non-splinted multi-unit coping

NSMU

0,51Ā Ā±Ā 0,22

A,b

0,57Ā Ā±Ā 0,19

B,a

0,61Ā Ā±Ā 0,27

C,d