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Table 1 Bacterial counts (CFU/mL, mean ± SD) and bacterial reductions (BR) in the different groups

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-NaOCl group

Mean ± SD (log10)

Mean ± SD (log10)

RD (%)

Mean ± SD (log10)

RD (%)

Mean ± SD (log10)

RD (%)

Coronal region

5.82 ± 4.74A

4.51 ± 3.78B a

95.12

4.38 ± 3.60C a

99.44

3.30 ± 1.78D a

99.74

Middle region

5.72 ± 4.83A

4.49 ± 3.70B a

94.13

4.36 ± 3.78C a

95.70

3.30 ± 2.70D a

99.70

Apical region

5.70 ± 4.80A

4.51 ± 3.85B b

93.25

4.40 ± 3.78B b

94.94

3.30 ± 2.70C b

99.54

Integrity

5.82 ± 4.15A

4.58 ± 3.90B

94.16

4.36 ± 3.85C

96.47

3.30 ± 2.78D

99.72

  1. SD, standard deviation; BR, bacterial reduction; CFU, colony-forming units
  2. Data with different uppercase letters (A, B, C, D) indicate significant differences within each group (p < 0.05)
  3. Data with different lowercase letters (a, b) indicate a significant difference within each region (p < 0.05)