Table 2 Mean and standard deviation of the length and width (mm) of the microcracks found before and after preparation.

From: Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment

 

Before preparation

After preparation

Length

Control group

0.23 ± 0.06

0.23 ± 0.08

Foraminal enlargement

0.22 ± 0.04a

0.33 ± 0.07a

Width

Control group

0.23 ± 0.07

0.27 ± 0.08

Foraminal enlargement

0.26 ± 0.04

0.27 ± 0.05

  1. aRepresents statistical difference between before and after preparation.
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