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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