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

Table 1

The distribution of Keros, Gera, and TMS scores according to the sides and gender.

Variables			Gender
			Male	Female
Keros scores/right side	1	Count	49	35
		% within gender	25.1%	19.8%
	2	Count	122	121
		% within gender	62.6%	68.4
	3	Count	24	21
		% within gender	12.3%	11.9%
Keros scores/left side	1	Count	38	30
		% within gender	19.5%	16.9%
	2	Count	129	121
		% within gender	66.2%	68.4%
	3	Count	28	26
		% within gender	14.4%	14.7%
Gera scores/right side	I	Count	49	47
		% within gender	25.1%	26.6%
	II	Count	126	115
		% within gender	64.6%	65%
	III	Count	20	15
		% within gender	10.3%	8.5%
Gera scores/left side	I	Count	63	61
		% within gender	32.3%	34.5%
	II	Count	114	102
		% within gender	58.5%	57.6%
	III	Count	18	14
		% within gender	9.2%	7.9%
TMS scores/right side	1	Count	189	164
		% within gender	96.9%	92.7%
	2	Count	5	13
		% within gender	2.6%	7.3%
	3	Count	1	0
		% within gender	0.5%	0%
TMS scores/left side	1	Count	191	166
		% within gender	97.9%	93.8%
	2	Count	4	9
		% within gender	2.1%	5.1%
	3	Count	0	2
		% within gender	0%	1.1%