Table 4.

Comparison of mean maxillary sinus between groups and subgroups.

Variables	Right		Left		Average
	Z	P	Z	P	Z	P
I & II (Overall)	2.643	0.008*	2.583	0.010*	2.717	0.007*
IA & IB	1.990	0.046*	1.961	0.50**	1.986	0.046*
IIA & IIB	1.201	0.247**	0.982	0.347**	1.333	0.186**
IA & IIA	1.663	0.098**	1.858	0.068**	1.823	0.068**
IB & IIB	2.426	0.014*	2.151	0.030*	2.314	0.019*

*p < 0.05 Significant, **p > 0.05 not significant.