Bond Strength and Deflection of Four Types of Bonded Lingual Retainers

Table 2

Pairwise comparisons of the groups regarding deflection by Tukey’s test.

Group (I)	Group (J)	Mean difference (I-J)	Std. error	value	95% confidence interval
					Lower bound	Upper bound
Three-strand	Bond-A-Braid	−1.94	0.17	≤0.001	−2.42	−1.46
	Ortho Flex	−1.60	0.18	≤0.001	−2.12	−1.08
	Retanium	−1.61	0.19	≤0.001	−2.15	−1.07
Bond-A-Braid	Ortho Flex	0.35	0.18	0.31	−0.17	0.86
	Retanium	0.33	0.19	0.38	−0.20	0.87
Ortho Flex	Retanium	−0.01	0.20	1.00	−0.58	0.56

The mean difference is significant at 0.05 level.