. 2024 Jun 28;54(6):359–373. doi: 10.4041/kjod24.016

Table 4.

Comparison of moments generated by direct printed 3D aligners of the 4 tested groups on lower canine, first premolar, and second premolar with attachment

Group	Moments x-axis (median, IQR)	Statistics	Post-hoc analysis	Moments y-axis (median, IQR)	Statistics	Post-hoc analysis	Moments z-axis (median, IQR)	Statistics	Post-hoc analysis
#33
Group 1. Equi-margin^a	0.08, 0.66	H = 36.585 df = 3 P < 0.001^***	ac^*	0.22, 1.62	H = 5.758 df = 3 P = 0.124	abcd	−1.03, 0.96	H = 32.170 df = 3 P < 0.001^***	ab^*
Group 2. 1-mm extened margin^b	1.53, 0.55		bd^*	0.11, 0.05		abcd	−0.38, 0.43		abc^*
Group 3. Equi-margin with 1-mm thickness and height ^c	−0.49, 0.64		ac^*	0.11, 1.51		abcd	0.17, 0.07		bcd^*
Group 4. Equi-margin with 1-mm reduced buccolingual width^d	0.90, 1.18		bd^*	0.72, 1.11		abcd	0.77, 1.31		cd^*
#34
Group 1. Equi-margin^a	2.49, 2.65	H = 15.733 df = 3 P = 0.001^**	abcd	0.29, 0.66	H = 30.885 df = 3 P < 0.001^***	abc^*	0.02, 0.26	H = 27.190 df = 3 P < 0.001^***	ac^*
Group 2. 1-mm extened margin^b	5.27, 7.58		abc^*	0.21, 1.13		abc^*	1.09, 0.74		bcd^*
Group 3. Equi-margin with 1-mm thickness and height^c	3.89, 2.41		abc^*	0.19, 0.66		abc^*	0.36, 0.13		abcd
Group 4. Equi-margin with 1-mm reduced buccolingual width^d	1.19, 2.98		ad^*	−1.10, 0.80		d^*	0.97, 0.91		bcd^*
#35
Group 1. Equi-margin^a	−0.86, 1.67	H = 30.722 df = 3 P < 0.001^***	a^*	−1.25, 1.60	H = 28.658 df = 3 P < 0.001^***	ab^*	−0.17, 1.36	H = 11.090 df = 3 P = 0.011^*	abcd
Group 2. 1-mm extened margin^b	0.31, 2.18		bcd^*	−1.19, 0.84		ab^*	−0.40, 1.75		abc^*
Group 3. Equi-margin with 1-mm thickness and height^c	1.35, 0.52		bcd^*	−0.34, 1.10		cd^*	0.16, 1.79		abcd
Group 4. Equi-margin with 1-mm reduced buccolingual width^d	0.95, 0.57		bcd^*	0.05, 1.43		cd^*	0.12, 0.41		acd^*

The Kruskal–Wallis test with Bonferroni correction was performed for post-hoc multiple comparisons.

Different letters among the groups indicate a statistically significant difference at adjusted P values < 0.05, according to post-hoc comparisons using the Bonferroni correction.

IQR, interquartile range.

*Statistically significant difference at adjusted P < 0.05; **statistically significant difference at adjusted P < 0.01; ***statistically significant difference at adjusted P < 0.001.