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Table 1 Percentage of clean area: median, minimum, maximum and standard deviation in each group

From: Comparison of the efficacy of nickel-titanium rotary systems with or without the retreatment instruments in the removal of gutta-percha in the apical third

Group

Roots

Mean

Median

Minimum

Maximum

SD

PTr

15

63.20

69.65

25.29

90.97

17.75

PT

15

49.95

50.34

20.26

67.44

15.42

M2r

15

50.02

49.28

25.14

84.33

16.10

M2

15

54.28

56.90

26.35

88.30

19.20

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BMC Oral Health

ISSN: 1472-6831

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