Progress in Orthodontics

Table 2 Comparison of the median pain scores between the 45 and 90° miniscrew groups at different time points

From: Effect of miniscrew insertion angle in the maxillary buccal plate on its clinical survival: a randomized clinical trial

Time	90°		45°		P-value^†
Time	Median	IQR	Median	IQR	P-value^†
At 1 h	4^c	1	4^c	2	0.511
At 12 h	2^b	1	2^b	1	0.595
At 24 h	1^ab	2	1^ab	1	0.108
At 7 days	0^a	0	0^a	0	0.317
P-value^‡	<0.001		<0.001

^†Wilcoxon signed-rank test
^‡Friedman test followed by Dunn’s multiple comparisons test (significant values have been adjusted by the Bonferroni correction for multiple tests)
Medians with the same superscript letters are not significantly different (P > 0.05)
IQR interquartile range

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