Shear Bond Strength of Four Types of Orthodontic Retainers after Thermocycling and Cyclic Loading

Table 2

ARI scores in the four groups.

ARI score	Bond-A-Braid		Twisted wire		Coaxial		Ortho-Flex Tech		value
	Count	%	Count	%	Count	%	Count	%
Score 0	1	10.0	0	0.0	3	30.0	2	20.0	0.738^†
Score 1	1	10.0	1	10.0	1	10.0	0	0.0
Score 2	4	40.0	5	50.0	5	50.0	5	50.0
Score 3	4	40.0	4	40.0	1	10.0	3	30.0
Minimum-maximum	0–3		1–3		0–3		0–3		0.239^‡

^†Monte Carlo chi-square test. ^‡Kruskal–Wallis test.