Table 1. Mean and standard deviation (SD) for mandibular intercanine, inter first-premolar, inter second-premolar, inter first-molar, inter second-molar distances after treatment (T0), two years after treatment (T2), and five years after treatment (T5) (mean, SD in mm).

Mandibular distances	Time point	N	Mean	SD	Minimum	Maximum
3 - 3	T0	75	26.18	1.93	21.21	30.34
	T2	65	26.17	2.16	21.02	30.78
	T5	57	26.16	2.00	21.30	30.41
4 - 4	T0	58	33.20	2.09	28.49	37.93
	T2	50	32.58	2.27	27.79	38.07
	T5	44	32.29	2.30	27.61	37.78
5 - 5	T0	70	37.77	2.97	31.16	43.96
	T2	63	36.76	3.09	30.36	43.49
	T5	53	36.82	3.16	30.11	43.44
6 - 6	T0	75	41.90	3.21	36.49	49.77
	T2	66	42.22	3.45	36.06	51.07
	T5	56	42.15	3.30	35.34	51.01
7 - 7	T0	73	48.56	3.36	40.29	58.02
	T2	64	49.05	3.46	39.67	58.87
	T5	55	48.99	3.76	39.32	57.88