Table 5 Effect of impression coping design on vertical discrepancy
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 | ||