Table 5

Radiographic evaluation of canal dimension changes (canal diameter and central canal area) in patients pre- and postoperatively using MRI.

Outcome MeasurePreoperativeImmediate PostoperativeΔChanges P a
CD, mm5.0 (2.4)8.3 (2.5)3.3 (2.0)<0.001b
CCA, mm2 55.8 (35.8)89.7 (36.1)33.9 (22.9)<0.001b

  • Abbreviations: CCA, central canal area; CD, canal diameter.

  • Note: Data presented as mean (SD).

  • ↵a Comparison with preoperative.

  • ↵b Statistically significant.