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Mean initial and final volumes of dentin (mm3), mean percentages of dentin removal after retreatment (%), and standard deviations
| Group | Mean initial volume | Mean final volume | Mean percentage (%) | P -value |
|---|---|---|---|---|
| PR | 129.44 | 122.81 | 5.02 (2.74) | 0.0028 |
| MR | 129.24 | 127.48 | 1.36 (1.48) |
PR=ProTaper Retreatment; MR=Mani Retreatment
