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Table 5 Effect of impression coping design on vertical discrepancy

From: The impact of impression coping geometrical design on accuracy of implant impressions: an experimental study

Impression technique Coping design Vertical discrepancy Total P value
Yes Percent % No Percent %
Open tray High retentive (Osstem) 5 15.6 27 84.3 32 0.440
Medium retentive (Straumann) 6 18.8 26 81.2 32
Low retentive (SIC) 9 28.1 23 71.9 32
Total 20 22.9 76 79.1 96
Closed tray Triangular (Osstem) 11 34.4 21 65.6 32 0.720
Rectangular (Straumann) 9 28.1 23 71.9 32
Round SIC 12 37.5 20 62.5 32
Total 32 33.3 64 66.7 96
  1. Chi-square test, P value > 0.05 no significance difference