The Korean Association of Orthodontists

Table. 2. Table 2

Pearson correlation analyses related to the vertical position of the maxillary first molar

Measurement	Raw value		Values calibrated toACB length		Values calibrated toPCB length

	Pearson correlation coefficient (r)	p-value	Pearson correlation coefficient (r)	p-value	Pearson correlation coefficient (r)	p-value
Angular
Articular angle	–0.095	0.338	0.161	0.105	0.146	0.142
Saddle angle	0.043	0.667	0.000	0.996	0.103	0.300
Upper gonial angle	–0.233	0.018^*	–0.569	< 0.001^***	–0.341	< 0.001^***
Lower gonial angle	0.075	0.453	0.226	0.022^*	0.334	0.001^**
Björk sum	–0.199	0.043^*	–0.015	0.883	0.347	< 0.001^***
Facial axis	–0.137	0.168	–0.339	< 0.001^***	–0.330	0.001^**
SN to Go-Me	–0.200	0.043^*	–0.015	0.882	0.347	< 0.001^***
SN to Y-axis	0.034	0.733	0.207	0.036^*	0.250	0.011^*
ODI	0.144	0.147	–0.098	0.327	–0.284	0.004^**
Ratio
Facial height ratio	0.373	< 0.001^***	0.213	0.031^*	–0.294	0.003^**
New linear
S to palatal plane	0.740	< 0.001^***	0.704	< 0.001^***	0.822	< 0.001^***
N to palatal plane	0.665	< 0.001^***	0.696	< 0.001^***	0.884	< 0.001^***
Or to palatal plane	0.560	< 0.001^***	0.552	< 0.001^***	0.731	< 0.001^***
Ptm to palatal plane	0.361	< 0.001^***	0.395	< 0.001^***	0.659	< 0.001^***
Po to palatal plane	0.358	< 0.001^***	0.348	< 0.001^***	0.616	< 0.001^***
Ar to palatal plane	0.365	< 0.001^***	0.238	0.015^*	0.679	< 0.001^***

Pearson correlation analyses were performed.

ACB, anterior cranial base; PCB, posterior cranial base; ODI, overbite depth indicator.

*p < 0.05; **p < 0.01; ***p < 0.001.

See Figure 1 for definition of each landmark.