Table 1. Dental arch form distribution according to sagittal root position.

	Oval form	Tapered form	Square form	Total	X2- value	p-value
Class I	6(60%)	2(20%)	2(20%)	10(100%)	4.773	0.311
Class II	9(100%)	0(0%)	0(0%)	9(100%)
Class III	9(81.8%)	1(9.1%)	1(9.1%)	11(100%)