Table 2 Mean ± standard deviation (SD) of angular deviation (degrees) 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 (P > 0.05)
| Test groups | Model 1 | Model 2 | Model 3 | |||||
|---|---|---|---|---|---|---|---|---|
| Mean ± SD | Sig. | Mean ± SD | Sig. | Mean ± SD | Sig. | |||
| Implant level impression techniques | Splinted hexed coping | SH | 0,7 ± 0,06 | A,a | 1,05 ± 0,04 | B,a | 1,13 ± 0,20 | C,a |
| Non-splinted hexed coping | NSH | 1,08 ± 0,21 | A,b | 1,19 ± 0,18 | B,b | 1,28 ± 0,13 | C,b | |
| Splinted non-hex coping | SNH | 0,75 ± 0,11 | A,a | 0,65 ± 0,07 | A,c | 0,77 ± 0,02 | A,c | |
| Non-splinted non-hex coping | NSNH | 1,09 ± 0,15 | A,b | 1,02 ± 0,18 | A,a,b | 1,12 ± 0,22 | B,b | |
| Abutment level impression techniques | Splinted multi-unit coping | SMU | 0,84 ± 0,12 | A,a | 0,88 ± 0,03 | A,d | 0,91 ± 0,17 | A,d |
| Non-splinted multi-unit coping | NSMU | 0,99 ± 0,09 | A,b | 0,94 ± 0,14 | A,d | 1,02 ± 0,06 | B,d | |