Table 4.

Root Volume Loss of Individual Incisors During Orthodontic Treatment^a

Tooth No.	Root Volume, mm3			Volume Loss, mm3	Volume Loss, %
	T0	T1	P Value
11	189.13 ± 38.02	174.51 ± 36.56	< .001***	14.62 ± 6.86	7.95 ± 3.58
12	152.17 ± 26.84	139.50 ± 26.10	< .001***	12.66 ± 6.78	8.42 ± 4.64
21	188.97 ± 37.60	176.35 ± 35.67	< .001***	12.62 ± 6.40	6.67 ± 2.92
22	153.63 ± 26.33	141.81 ± 25.17	< .001***	11.82 ± 6.50	7.65 ± 4.22
31	107.29 ± 20.92	97.20 ± 19.11	< .001***	10.09 ± 5.81	9.30 ± 4.96
32	136.58 ± 23.02	126.40 ± 22.78	< .001***	10.18 ± 7.28	7.43 ± 5.20
41	107.71 ± 21.25	98.70 ± 19.48	< .001***	9.01 ± 5.52	8.30 ± 4.60
42	134.62 ± 23.79	123.77 ± 22.67	< .001***	10.86 ± 7.17	8.00 ± 4.82

^aData are presented as mean ± SD.

*** P < .001.