Table 3: Push-out bond strength in megapascals (MPa) (Mean, SD and CI 95%) for the groups evaluated in different regions.

  Region
Group Cervical Middle Apical
(± SD) CI 95% ± SD CI 95% ± SD CI 95%
G1 17.33 (5.31)A, a 6.71 - 27.95 9.8 (3.39)A, b 3.02 - 16.58 5.47 (4.07)A, b -2.67 - 13.61
G2 11.65 (5.08)A, a 1.49 - 21.81 8.97 (3.25)A, a 2.47 - 15.47 12.40 (4.80)B, a 2.80 – 22.00
G3 11.43 (3.68)A, a 4.07 - 18.79 8.69 (2.73)A, a 3.23 - 14.15 9.24 (3.12)A,B, a 3.00 - 15.48
G4 5.43 (1.80)B, a 1.83 - 9.03 4.27 (1.46)B, a 1.35 - 7.19 5.33 (2.24)A, a 0.85 - 9.81

Note: Different superscript case letters indicate statistically significant differences within columns, and different lower letters indicate significant differences within rows (p≤0.05) by Tukey test for multiple comparisons.