Table 5 Comparison of the changes of RL and alveolar bone morphologic measurements (T2-T1) among groups

V-LA, mm³

− 5.97(− 10.08, 4.12)

6.09(− 5.41, 22.77)

10.89(− 8.19, 26.44)

0.04*

(2,3) > 1

V-L, mm³

− 16.53(− 24.76, − 7.17)

− 27.80(− 37.97, − 15.00)

− 31.41(− 39.40, − 22.16)

0.02*

(1,2) > (2,3)

V-W, mm³

− 15.08(− 28.71, − 9.32)

− 11.73(− 29.47, − 3.70)

− 21.63(− 36.76, − 2.97)

0.68

–

PDLA, mm²

− 14.26(− 24.85, − 5.70)

− 21.30(− 29.99, − 8.84)

− 23.40(− 35.63, − 13.53)

0.27

–

RL, mm

− 1.27(− 1.54, − 0.80)

− 1.09(− 2.02, − 0.67)

− 1.46(− 1.71, − 0.72)

0.82

–

T-ALA, mm

0.83(0.30, 1.76)

1.46(0.06, 2.85)

1.84(0.59, 3.50)

0.23

–

T-AL, mm

− 1.48(− 2.63, − 0.68)

− 2.54(− 3.50, − 1.40)

− 2.27(− 3.09, − 0.92)

0.24

–

T-AW, mm

− 0.30(− 0.95, 0.02)

− 0.45(− 1.31, 0.13)

− 0.12(− 1.24, 1.30)

0.37

–

T-MLA, mm

0.17(− 0.45, 0.63)

0.20(− 0.14, 0.74)

1.23(0.19, 1.83)

0.03*

(3,2) > (2,1)

T-ML, mm

− 0.89(− 1.06, − 0.47)

− 1.19(− 1.60, − 0.86)

− 1.48(− 1.73, − 1.14)

0.01*

(1,2) > (2,3)

T-MW, mm

− 0.55(− 0.88, − 0.12)

− 0.76(− 1.35, − 0.17)

− 0.19(− 0.99, 0.30)

0.25

–

VBL-LA, mm

0.55(− 0.02, 2.53)

0.01(− 0.68, 2.17)

0.06(− 0.24, 1.03)

0.27

–

VBL-L, mm

6.31(2.79, 7.54)

5.16(2.68, 7.22)

5.14(4.04, 7.10)

0.68

–

VBL-M, mm

0.45(0.08, 0.69)

0.08(− 0.42, 0.43)

0.28(0.05, 0.65)

0.10

–

VBL-D, mm

0.41(− 0.17, 0.56)

− 0.01(− 0.77, 0.61)

0.33(0.03, 0.89)

0.24

–