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Table 2 Accuracy of impression technique for parallel and non-parallel implant systems

From: Implant impression accuracy of parallel and non-parallel implants: a comparative in-vitro analysis of open and closed tray techniques

Implant systems

Impression technique

N

Median

Mean

Standard deviation

P value

Straumann

Open

32

0.016

0.036

0.044

0.667

Closed

32

0.016

0.038

0.041

SIC

Open

32

0.020

0.037

0.038

0.472

Closed

32

0.036

0.047

0.045

Osstem

Open

32

0.011

0.029

0.043

0.035*

Closed

32

0.037

0.062

0.066

Straumann

Parallel

32

0.016

0.031

0.034

0.323

Non-parallel

32

0.016

0.044

0.049

SIC

Parallel

32

0.020

0.040

0.040

0.814

Non-parallel

32

0.032

0.044

0.043

Osstem

Parallel

32

0.012

0.035

0.047

0.045*

Non-parallel

32

0.017

0.056

0.066

  1. *Mann-Whitney U test, P value < 0.05 statistically significant