CBCT Assessment of Ethmoid Roof Variations through Keros, Gera, and TMS Classifications

Table 4

Gera scores in the right and left sides.

Variables			Gera scores right side
			I	II	III
Gera scores left sides	I	Count	64	55	5
		% of total	17.2%	14.8%	1.3%
	II	Count	30	169	17
		% of total	8.1%	45.4%	4.6%
	III	Count	2	17	13
		% of total	0.5%	4.6%	3.5%