Overall Left (I) Right (II) I vs II Female (III) Male (IV) III vs IV
P-value P-value
Buccal wall thickness (mm) 1.05 (0.57) 1.45 (1.01) 0.68 (0.57) 0.013a 1.39 (0.49) 0.62 (0.25) 0.023a
Buccal wall bone density
(CBCT-HU) 		542.29 (311.2) 631.27 (206.23) 516.19 (297.29) 0.027a 648.83 (218) 501.24 (137.02) 0.019a
Superior wall thickness (mm) 1.06 (0.83) 1.51 (1.36) 0.65 (0.24) 0.01a 0.98 (0.8) 1.17 (0.91) 0.519
Superior wall bone density
(CBCT-HU) 		563.27 (289.95) 642.18 (207.33) 530.76 (228.34) 0.018a 571.33 (219.37) 594.36 (275.36) 0.627
Lingual wall thickness (mm) 0.66 (0.29) 0.66 (0.28) 0.66 (0.31) 0.873 0.67 (0.27) 0.66 (0.33) 0.84
Lingual wall bone density
(CBCT-HU) 		630.54 (273.09) 641.28 (244.18) 612.19 (218.84) 0.725 624.38 (218.77) 640.33 (243.11) 0.887
Apico-coronal diameter (mm) 2.8 (0.65) 2.91 (0.66) 2.85 (0.63) 0.382 2.73 (0.57) 3.06 (0.69) 0.013a
Bucco-lingual diameter (mm) 2.22 (0.49) 2.22 (0.5) 2.23 (0.48) 0.792 2.15 (0.5) 2.31 (0.46) 0.067

aP < 0.05 significant differences between subgroups according to Student's t test.
CBCT = cone-beam computed tomography; HU = Hounsfield units