Table 1.

Baseline characteristics and baseline discrepancy index (DI) of the two groups

	Fixed appliances (N = 20) Mean ± SD	Clear aligners (N = 20) Mean ± SD	p value
Age	22.33 ± 4.33	25.15 ± 6.67	0.128
Treatment duration	29.67 ± 7.71	25.85 ± 8.00	0.140
Overjet	0.75 ± 1.07	1.35 ± 1.31	0.121
Overbite	1.05 ± 1.10	1.20 ± 1.28	0.693
Anterior open bite	2.28 ± 3.55	1.00 ± 1.52	0.148
Lateral open bite	2.80 ± 4.42	1.25 ± 1.74	0.158
Crowding	2.25 ± 1.52	1.90 ± 1.17	0.418
Occlusion	2.10 ± 1.77	1.40 ± 1.85	0.229
Posterior crossbite	0.60 ± 1.14	0.55 ± 0.94	0.881
ANB angle	0.25 ± 1.12	0.60 ± 1.88	0.478
SN-MP angle	0.90 ± 3.21	1.19 ± 2.68	0.757
IMPA angle	1.30 ± 2.41	2.25 ± 3.48	0.3.22
Total score	14.38 ± 0.89	12.69 ± 0.52	0.610

SD: standard deviation