Table 3 Descriptive statistics and multiple comparison results on bond strength values based on root canal irrigation protocols, zones, and aging status

Gr1 (0.9% SS)

Before (BA)

6.27 ± 0.42

5.83 ± 0.50

4.64 ± 0.53

5.58 ± 0.84^G

After (AA)

4.91 ± 0.15

4.30 ± 0.31

2.90 ± 0.42

4.04 ± 0.91 ^H

Total

5.59 ± 0.76 ^H

5.07 ± 0.88^I

3.77 ± 1.01 ^J

4.81 ± 1.17^a

Gr2 (2.5% NaOCl + 0.9% SS)

Before (BA)

8.44 ± 0.34

7.15 ± 0.22

5.31 ± 0.49

6.97 ± 1.35 ^F

After (AA)

7.40 ± 0.54

5.90 ± 0.15

4.40 ± 0.43

5.90 ± 1.31^G

Total

7.92 ± 0.69 ^F

6.53 ± 0.67^G

4.86 ± 0.64^I

6.43 ± 1.42^b

Gr3 (17% EDTA + 2.5% NaOCl + 0.9% SS)

Before (BA)

10.76 ± 0.50

9.41 ± 0.41

8.12 ± 0.22

9.43 ± 1.16^D

After (AA)

9.60 ± 0.51

8.20 ± 0.29

6.90 ± 0.38

8.23 ± 1.19^E

Total

10.18 ± 0.77^CD

8.81 ± 0.71^E

7.51 ± 0.70 ^F

8.83 ± 1.31^c

Gr4 (10% MA + 2.5% NaOCl + 0.9% SS)

Before (BA)

13.48 ± 0.48

11.60 ± 0.44

10.29 ± 0.39

11.79 ± 1.40 ^A

After (AA)

12.10 ± 0.37

10.40 ± 0.53

9.30 ± 0.44

10.60 ± 1.25^B

Total

12.79 ± 0.82 ^A

11.00 ± 0.78^B

9.80 ± 0.65^D

11.20 ± 1.44^d

Gr5 (0.2% Ch + 2.5% NaOCl + 0.9% SS)

Before (BA)

11.14 ± 0.25

9.67 ± 0.39

8.48 ± 0.39

9.76 ± 1.16 ^C

After (AA)

9.80 ± 0.42

8.40 ± 0.36

7.00 ± 0.37

8.40 ± 1.22^E

Total

10.47 ± 0.76 ^C

9.04 ± 0.75^E

7.74 ± 0.84 ^F

9.08 ± 1.36^e

Total

Before (BA)

10.02 ± 2.52

8.73 ± 2.08

7.37 ± 2.16

8.71 ± 2.49

After (AA)

8.76 ± 2.49

7.44 ± 2.17

6.10 ± 2.28

7.43 ± 2.55

Total

9.39 ± 2.57^a

8.09 ± 2.21^b

6.73 ± 2.30^c

8.07 ± 2.60