Table 1 Percentage of dentinal microcracks before and after preparation.

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

 

Before preparation

After preparation

Control group

3.83aA

4.40aA

Foraminal enlargement

3.73aA

12.87bB

  1. Different lowercase letters overlapped on the same line indicate statistical difference between before and after preparation in same group. Different capital letters overlapped on the same column indicate statistical difference between groups.