. 2022 Jul 25;52(4):287–297. doi: 10.4041/kjod21.248

Table 4.

Comparison of mean errors among the four time-points (T0, T1, T2 and T3) and between two time-points ([T0, T1] vs. [T2, T3])

Compartment			Landmark	Initial stage (T0)	Pre-surgery stage (T1)	Post-surgery stage (T2)	Debonding stage (T3)	Multiple comparison
				Initial stage (T0)	Pre-surgery stage (T1)	Post-surgery stage (T2)	Debonding stage (T3)	Among T0, T1, T2 and T3 stages^†		(T0, T1) vs. (T2, T3)^‡
				Mean ± SD (mm)	Mean ± SD (mm)	Mean ± SD (mm)	Mean ± SD (mm)	p-value	Tukey HSD test	p-value	Contrast matrix with the MANOVA
Skeletal landmark	Cranial base		Nasion	0.58 ± 0.42	0.59 ± 0.48	0.55 ± 0.39	0.64 ± 0.60	0.698		0.852
			Sella	0.48 ± 0.23	0.43 ± 0.19	0.41 ± 0.20	0.50 ± 0.27	0.155		0.986
			Porion	1.04 ± 0.55	1.07 ± 0.76	1.17 ± 0.85	1.01 ± 0.57	0.493		0.566
			Orbitale	1.19 ± 0.88	1.15 ± 0.88	1.39 ± 1.40	1.10 ± 0.76	0.454		0.618
			Basion	1.41 ± 1.32	1.59 ± 1.60	1.95 ± 1.94	1.61 ± 1.52	0.148		0.092
	Maxilla	Anterior	ANS	1.07 ± 0.78	1.22 ± 0.97	1.78 ± 1.22	1.49 ± 0.87	0.003**	T0^a, T1^a, T2^b, and T3^ab	0.003**	(T0, T1) < (T2, T3)
			A point	1.27 ± 0.89	1.28 ± 0.78	1.50 ± 1.07	1.59 ± 1.16	0.151		0.040*	(T0, T1) < (T2, T3)
		Posterior	PNS	1.16 ± 0.79	1.14 ± 0.87	1.29 ± 1.09	1.17 ± 0.82	0.823		0.587
	Mandible	Anterior	B point	1.00 ± 0.97	1.01 ± 0.61	1.29 ± 1.24	1.31 ± 0.91	0.142		0.008**	(T0, T1) < (T2, T3)
			Pogonion	0.66 ± 0.48	0.80 ± 0.72	0.82 ± 0.69	0.86 ± 0.77	0.277		0.260
		Bottom	Menton	0.83 ± 0.52	0.70 ± 0.39	0.74 ± 0.38	0.82 ± 0.45	0.298		0.786
		Posterior	Articulare	0.76 ± 0.39	0.75 ± 0.42	0.73 ± 0.40	0.84 ± 0.58	0.540		0.616
Dental landmark	Maxillary dentition	Anterior	Mx1C	0.48 ± 0.37	0.49 ± 0.55	0.41 ± 0.26	0.38 ± 0.18	0.355		0.096
			Mx1R	1.83 ± 1.24	1.37 ± 1.14	1.56 ± 1.02	1.54 ± 1.17	0.166		0.714
		Posterior	Mx6D	1.66 ± 1.18	1.63 ± 1.31	1.20 ± 0.80	1.23 ± 0.88	0.032*	T0^b, T1^ab, T2^a, and T3^ab	0.008**	(T2, T3) < (T0, T1)
			Mx6R	1.89 ± 1.15	1.65 ± 1.08	1.57 ± 1.03	1.60 ± 1.05	0.349		0.194
	Mandibular dentition	Anterior	Md1C	0.48 ± 0.45	0.62 ± 1.10	0.47 ± 0.39	0.37 ± 0.31	0.215		0.096
			Md1R	1.77 ± 1.22	1.52 ± 1.00	1.37 ± 0.96	1.63 ± 0.95	0.303		0.400
		Posterior	Md6D	2.15 ± 1.79	1.71 ± 0.91	1.51 ± 1.14	1.33 ± 0.75	0.008**	T0^b, T1^ab, T2^a, and T3^a	0.003**	(T2, T3) < (T0, T1)
			Md6R	2.21 ± 1.64	2.08 ± 1.36	1.94 ± 1.25	1.89 ± 1.12	0.579		0.242
Total				1.20 ± 1.10	1.14 ± 1.02	1.18 ± 1.09	1.15 ± 0.95	0.376		0.895