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Table 2 Amount of Apically Extruded Debris

From: Less extrusion debris during the retreatment of curved canals using twisted files with higher rotational speeds: an ex vivo study

Group

Number

Mean Weight (mg)

SD

Range

A

12

0.54

0.05

0.45–0.61

B

12

0.48

0.04

0.42–0.56

C

12

0.42

0.03

0.38–0.49

D

12

0.69

0.04

0.62–0.76

  1. Group A: Twisted Files at 500 rpm; Group B: Twisted Files at 1000 rpm; Group C: Twisted Files at 1500 rpm; Group D: manual technique
  2. SD standard deviation