Table 7 Correlation analysis between vertical palatal alveolar bone resorption and pre/post/difference values.

Initial (pre) values	Pearson coefficient p value (both sides)	Final (post) values	Pearson coefficient p value (both sides)	Difference (pre − post)	Pearson coefficient p value (both sides)
Pre SNB	0.451*	Post SNB	− 0.462**	DIF UOP	0.522**
Pre SNB	0.008	Post SNB	0.007	DIF UOP	0.002
Pre MP	0.362*	Post MP	0.404*	DIF POP	0.617***
Pre MP	0.038	Post MP	0.020	DIF POP	0.000
Pre PAS to U1 axis	0.545**	Post PAS to U1 axis	0.635***	DIF PP to PAS	0.676***
Pre PAS to U1 axis	0.001	Post PAS to U1 axis	0.000	DIF PP to PAS	0.000
Pre surface area	− 0.344*	Post surface area	0.405*	DIF SN to PAS	0.486**
Pre surface area	0.050	Post surface area	0.019	DIF SN to PAS	0.004
Pre U1 to SN	− 0.451*	Post U1 to SN	− 0.480**	DIF palatal surface angle	0.583***
Pre U1 to SN	0.008	Post U1 to SN	0.005	DIF palatal surface angle	0.000
Age	0.005	Post UOP	0.479**	DIF intrusion	− 0.121
Age	0.997	Post UOP	0.005	DIF intrusion	0.526
		Post POP	0.563**	DIF retraction	0.001
		Post POP	0.001	DIF retraction	0.998
		Post PP to PAS	0.512**
		Post PP to PAS	0.002
		Post palatal surface angle	0.524**
		Post palatal surface angle	0.002
		Post angle of convexity	0.430*
		Post angle of convexity	0.013

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