THE KOREAN JOURNAL of ORTHODONTICS

Table 3

Changes in hard and soft tissue width

Variable	T1	T2	T3	T2-T1		T3-T2		T3-T1
Variable	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	p-value	Mean ± SD	p-value	Mean ± SD	p-value
IGW (mm)
SYG	99.49 ± 6.19	102.40 ± 6.42	100.77 ± 6.29	2.91 ± 1.67	< 0.001^*	–1.62 ± 1.30	< 0.001^*	1.29 ± 1.69	< 0.001^*
ASG	100.38 ± 6.40	102.85 ± 6.36	101.53 ± 6.09	2.47 ± 1.88	< 0.001^*	–1.32 ± 1.08	< 0.001^*	1.15 ± 1.85	0.002^*
IRW (mm)
SYG	109.85 ± 4.90	112.49 ± 4.72	109.95 ± 4.95	2.64 ± 1.77	< 0.001^*	–2.54 ± 1.38	< 0.001^*	0.10 ± 1.58	0.674
ASG	110.38 ± 5.81	112.19 ± 6.10	110.64 ± 6.003	1.80 ± 1.85	< 0.001^*	–1.54 ± 1.65	< 0.001^*	0.26 ± 1.67	0.386
STW (mm)
SYG	131.57 ± 10.15	143.26 ± 11.89	131.33 ± 9.84	11.68 ± 7.60	< 0.001^*	–11.92 ± 7.28	< 0.001^*	–0.24 ± 4.53	0.713
ASG	133.00 ± 12.29	143.40 ± 14.08	132.70 ± 13.52	10.39 ± 4.87	< 0.001^*	–10.70 ± 5.21	< 0.001^*	–0.30 ± 3.17	0.592

SYG, symmetric group; ASG, asymmetric group; IGW, intergonial width; IRW, interramal width; STW, soft tissue width; SD, standard deviation; T1, immediately before surgery; T2, 3 days after surgery; T3, 6 months after surgery.

*p < 0.05.

Korean J Orthod 2023;53:99~105 https://doi.org/10.4041/kjod22.077