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Analysis of volume difference within groups using paired t test.
| Study Groups | N | Mean | SD | T | p | 95% Confidence Interval | ||
|---|---|---|---|---|---|---|---|---|
| Mtwo | Before | 15 | 0.033 | 0.007 | -9.02 | 0.000 | -0.013 | -0.008 |
| After | 15 | 0.044 | 0.006 | |||||
| ProTaper | Before | 15 | 0.340 | 0.005 | -7.24 | 0.000 | -0.012 | -0.007 |
| After | 15 | 0.440 | 0.006 | |||||
| ProTaper NEXT | Before | 15 | 0.320 | 0.067 | -12.47 | 0.000 | -0.013 | -0.009 |
| After | 15 | 0.433 | 0.004 | |||||
