Table 2 Comparison of experimental and control groups before thermocycling.
Spacers | Measurements | Restorations | P values# | |
|---|---|---|---|---|
Pink cavit mean (sd) | Riva RRGI mean (sd) | |||
Cotton pellet | Porosity % | 13.4 (5.0) | 13.0 (6.8) | 0.899 |
Void % | 6.8 (4.2) | 4.4 (1.7) | 0.142 | |
Gap % | 6.6 (4.5) | 8.6 (6.3) | 0.444 | |
PTFE | Porosity % | 14.4 (6.3) | 8.8 (3.9) | 0.037 |
Void % | 10.3 (5.2) | 5.6 (3.0) | 0.033 | |
Gap % | 4.2 (2.4) | 3.2 (2.0) | 0.389 | |
No spacer | Porosity % | 6.6 (2.0) | 5.2 (3.3) | 0.490 |
Void % | 6.2 (1.7) | 5.1 (3.3) | 0.559 | |
Gap % | 0.4 (0.3) | 0.2 (0.2) | 0.207 | |
P values^ | Porosity % | Cotton versus no spacer 0.076 PTFE versus no spacer 0.040 | Cotton versus no spacer 0.039 PTFE versus no spacer 0.399 | |
Void % | Cotton versus no spacer 0.956 PTFE versus no spacer 0.218 | Cotton versus no spacer 0.863 PTFE versus no spacer 0.901 | ||
Gap % | Cotton versus no spacer 0.012 PTFE versus no spacer 0.131 | Cotton versus no spacer 0.007 PTFE versus no spacer 0.372 | ||
