Table 5.

Percentage of condylar and fossa observed shapes

	1		2		3		6–12		13–16		17–25		26–33
	Condyle	Fossa	Condyle	Fossa	Condyle	Fossa	Condyle	Fossa	Condyle	Fossa	Condyle	Fossa	Condyle	Fossa
Round	27.1	26.6	22.7	37.5	14.6	27.2	44.4	52.1	20	30	9.1	19	9.8	14.4
Oval	66.8	61.7	76.5	55.5	81.5	55.3	52.8	36.8	77.9	60	85.6	63.7	84.1	72.7
Trapezoidal	–	7	–	3.1	–	11.7	–	10.4	–	6.4	–	9.8	–	4.5
Triangular	4.7	4.7	0.8	3.9	2.9	5.8	0.7	0.7	1.4	3.6	4.5	7.5	6.1	8.4
Flattened	1.4	–	–	–	1	–	2.1	–	0.7		0.8	–	–	–

1: IGA < 45°; 2: 45° ≤ IGA ≤ 60°; 3: IGA > 60°