Table 1.

Correlation analysis on IGA and OPA

	IGA		OPA
	r	P	r	P
Incisal guidance angle (IGA)	–	–	0.381	0.000**
Occlusal plane angle (OPA)	0.381	0.000**	–	–
Medial space (MS)	− 0.182	0.003**	− 0.338	0.000**
Lateral space (LS)	− 0.114	0.059	− 0.149	0.014*
Medial inclination of the condyle (MIC)	− 0.085	0.160	− 0.072	0.237
Lateral inclination of the condyle (LIC)	− 0.139	0.022*	0.036	0.548
Superior space (SS)	− 0.124	0.041*	− 0.342	0.000**
Anterior space (AS)	− 0.005	0.930	− 0.096	0.113
Posterior space (PS)	− 0.141	0.019*	− 0.185	0.002**
Anterior inclination of the condyle (AIC)	0.054	0.370	− 0.201	0.001**
Posterior inclination of the condyle(PIC)	0.008	0.898	− 0.002	0.976
Height of the fossa (HF)	0.108	0.073	− 0.036	0.548
Width of the fossa (WF)	0.071	0.241	− 0.029	0.628
Articular eminence inclination (AEI)	0.145	0.016*	− 0.013	0.827
Long axis of the condyle (LAC)	0.057	0.350	− 0.410	0.000**
Minor axis of the condyle (MAC)	− 0.027	0.653	− 0.085	0.161

*P < 0.05

**P < 0.01