Effects of Two-Phase Treatment with the Herbst and Preadjusted Edgewise Appliances on the Upper Airway Dimensions

Table 4

Results of Spearman’s correlation analysis for changes of skeletal morphology and dimension of upper airway.

		Depth of upper airway ()				Depth of upper airway ()
		PM-UPW	U-MPW	PASmin	V-LPW	PM-UPW	U-MPW	PASmin	V-LPW
Skeletal morphology ()
SNA	Coefficient ()	0.229	0.034	0.309	0.146	−0.232	−0.295	0.004	0.324
	value	0.251	0.867	0.116	0.469	0.244	0.136	0.984	0.099
SNB	Coefficient ()	−0.161	0.100	0.296	0.196	−2.340	−0.009	−0.062	0.303
	value	0.422	0.621	0.134	0.326	0.244	0.964	0.757	0.125
ANB	Coefficient ()	0.341	0.002	0.071	0.007	−0.102	−0.319	0.015	0.046
	value	0.082	0.993	0.725	0.974	0.613	0.105	0.941	0.820
MnPl-SN	Coefficient ()	0.136	−0.127	−0.413	−0.150	−0.052	−0.116	−0.280	−0.353
	value	0.500	0.526	0.032	0.454	0.797	0.563	0.157	0.071

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