Progress in Orthodontics

Table 1 Method analysis

From: Stability of transverse dental arch dimension with passive self-ligating brackets: a 6-year follow-up study

	T0		T1		T2		T3
	Ttest_pvalue	Dahlberg	Ttest_pvalue	Dahlberg	Ttest_pvalue	Dahlberg	Ttest_pvalue	Dahlberg
3–3 upper	0.4924	0.0044	0.809	0.021	0.6824	0.025	0.4502	0.059
4–4 upper	0.5632	0.084	0.7034	0.049	0.5835	0.067	0.1140	0.056
5–5 upper	0.1713	0.062	0.6346	0.078	0.7751	0.032	0.1909	0.017
6–6 upper	0.1171	0.124	0.4383	0.057	0.0675	0.034	0.9461	0.042
7–7 upper	0.7995	0.028	0.4069	0.018	0.0091	0.040	1.0000	0.019
3–3 lower	0.2567	0.057	0.1987	0.052	1.0000	0.082	0.0470	0.038
4–4 lower	0.7747	0.034	0.7372	0.076	0.9673	0.039	0.2570	0.057
5–5 lower	0.5125	0.028	0.7822	0.052	0.0760	0.038	0.3361	0.132
6–6 lower	0.5422	0.099	0.3043	0.073	0.1795	0.047	0.4875	0.071
7–7 lower	0.1375	0.063	0.0751	0.169	0.4193	0.108	0.7008	0.075

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