Table 4. Pairwise comparisons of superelastic NiTi versus multistranded stainless steel wires for effect on pain at each time point.

Time	Group*		Estimate	SE†	DF‡	t value	P¶	95% confidence interval
								Lower	Upper
Baseline	Multistranded	Superelastic	−1.81E-13	1.1125	1047	0	1	−2.1815	2.1815
1 h	Multistranded	Superelastic	−1.3053	1.1125	1047	−1.17	0.2408	−3.4868	0.8762
2 h	Multistranded	Superelastic	−1.8545	1.1125	1047	−1.67	0.0956	−4.036	0.327
4 h	Multistranded	Superelastic	−0.245	1.1125	1047	−0.22	0.8257	−2.4266	1.9365
6 h	Multistranded	Superelastic	−1.9599	1.1125	1047	−1.76	0.0782	−4.1415	0.2216
12 h	Multistranded	Superelastic	−2.6041	1.1125	1047	−2.34	0.0193	−4.7856	−0.4226
Day 1 morning	Multistranded	Superelastic	−2.4572	1.1125	1047	−2.21	0.0273	−4.6387	−0.2757
Day 1 afternoon	Multistranded	Superelastic	−2.3516	1.1125	1047	−2.11	0.0346	−4.5331	−0.1701
Day 1 bedtime	Multistranded	Superelastic	−2.263	1.1125	1047	−2.03	0.042	−4.4445	−0.08149
Day 2 morning	Multistranded	Superelastic	−1.6196	1.1125	1047	−1.46	0.1456	−3.8011	0.5619
Day 2 afternoon	Multistranded	Superelastic	−0.6327	1.1125	1047	−0.57	0.5696	−2.8142	1.5488
Day 2 bedtime	Multistranded	Superelastic	−0.2781	1.1125	1047	−0.25	0.8026	−2.4597	1.9034
Day 3 morning	Multistranded	Superelastic	−0.3784	1.1125	1047	−0.34	0.7338	−2.5599	1.8031
Day 3 afternoon	Multistranded	Superelastic	0.4317	1.1125	1047	0.39	0.698	−1.7498	2.6132
Day 3 bedtime	Multistranded	Superelastic	−0.6619	1.1125	1047	−0.59	0.5519	−2.8434	1.5196
Day 4 morning	Multistranded	Superelastic	−1.2825	1.1125	1047	−1.15	0.2491	−3.4641	0.899
Day 4 afternoon	Multistranded	Superelastic	−1.3367	1.1125	1047	−1.2	0.2297	−3.5182	0.8448
Day 4 bedtime	Multistranded	Superelastic	−1.2189	1.1125	1047	−1.1	0.2733	−3.4005	0.9626
Day 5 morning	Multistranded	Superelastic	−1.3085	1.1125	1047	−1.18	0.2396	−3.49	0.873
Day 5 afternoon	Multistranded	Superelastic	−1.1344	1.1125	1047	−1.02	0.308	−3.3159	1.0472
Day 5 bedtime	Multistranded	Superelastic	−0.5856	1.1125	1047	−0.53	0.5987	−2.7671	1.596
Day 6 morning	Multistranded	Superelastic	−0.5915	1.1125	1047	−0.53	0.595	−2.773	1.59
Day 6 afternoon	Multistranded	Superelastic	−0.4731	1.1125	1047	−0.43	0.6707	−2.6546	1.7084
Day 6 bedtime	Multistranded	Superelastic	−0.6648	1.1125	1047	−0.6	0.5502	−2.8464	1.5167
Day 7 morning	Multistranded	Superelastic	−0.2239	1.1125	1047	−0.2	0.8405	−2.4054	1.9576
Day 7 afternoon	Multistranded	Superelastic	0.2017	1.1125	1047	0.18	0.8561	−1.9798	2.3833
Day 7 bedtime	Multistranded	Superelastic	0.2182	1.1125	1047	0.2	0.8445	−1.9633	2.3998
Day 10 morning	Multistranded	Superelastic	−0.4228	1.1125	1047	−0.38	0.7039	−2.6044	1.7587
Day 10 afternoon	Multistranded	Superelastic	−0.2619	1.1125	1047	−0.24	0.8139	−2.4434	1.9196
Day 10 bedtime	Multistranded	Superelastic	−0.2209	1.1125	1047	−0.2	0.8426	−2.4024	1.9606
Day 14 morning	Multistranded	Superelastic	−0.3202	1.1125	1047	−0.29	0.7735	−2.5017	1.8613
Day 14 afternoon	Multistranded	Superelastic	−0.1038	1.1125	1047	−0.09	0.9257	−2.2853	2.0777
Day 14 bedtime	Multistranded	Superelastic	−0.2903	1.1125	1047	−0.26	0.7941	−2.4718	1.8912

^*Multistranded: multistranded stainless steel; superelastic: superelastic NiTi.

^†Standard error.

^‡Kenwardroger Degree of Freedom.

^¶Significance level P<0.05.