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Table 2 Smear layer scores (Mean ± SD) in different groups and three regions of root canal

From: Bactericidal effect of a diode laser on Enterococcus faecalis in human primary teeth—an in vitro study

 

negative group

positive group

diode laser group

diode-group

Coronal region

3.71 ± 0.46A

2.57 ± 0.49B a

1.86 ± 0.35C a

1.14 ± 0.35D a

Middle region

3.86 ± 0.35A

2.43 ± 0.49B a

1.71 ± 0.42C a

1.14 ± 0.35D a

Apical region

3.71 ± 0.45A

3.14 ± 0.35B b

2.43 ± 0.49B b

1.29 ± 0.45D a

  1. Data with different uppercase letters (A, B, C, D) indicate significant differences within each group (p < 0.05)
  2. Data with different lowercase letters (a, b) indicate significant difference within each region (p < 0.05)