Table 4.

ABT at the apical area of lateral incisors on the un-impacted side( Mean ± SD)

ABT-AA	PICs	BICs	MAICs	PICs		BICs		MAICs
				LIRR	No-LIRR	LIRR	No-LIRR	LIRR	No-LIRR
Labial	2.27 ± 1.06	3.21 ± 1.50	2.85 ± 1.56	2.11 ± 0.85	2.34 ± 1.13	3.11 ± 0.94	3.23 ± 1.57	3.28 ± 2.22	2.67 ± 1.19
Palatal	7.62 ± 2.53	7.29 ± 2.20	6.75 ± 1.83	6.22 ± 1.34***	8.19 ± 2.68	5.83 ± 1.41**	7.53 ± 2.22	6.94 ± 1.67	6.66 ± 1.91
Total	9.89 ± 2.52†	10.50 ± 2.30	9.60 ± 2.19†	8.33 ± 1.64***	10.53 ± 2.55	8.94 ± 1.85***	10.76 ± 2.28	10.22 ± 2.25	9.34 ± 2.14

SD indicates standard deviation, ABT-AA Alveolar bone thickness at the apical area, PICs Palatal impacted canines, BICs Buccal impacted canines, MAICs Midalveolus impacted canines, LIRR Lateral incisor root resorption

^†, p < .05, vs BICs in total ABT-AA

^**, p < .01, vs No-LIRR in the corresponding group

^***, p < .001, vs No-LIRR in the corresponding group