Relationship between Cervical Spine and Skeletal Class II in Subjects with and without Temporomandibular Disorders

Table 4

Absolute and percent frequencies of hyoid bone position for each ANB score. ANB scores are 5 to 9°/10°. Values are divided into abnormally low and normal. Class II is divided on the basis of the presence or not of TMD.

TMD		ANB	Hyoid bone position
		Value	Abnormally low (<3 mm)	Normal	Total
Absent		5	8	9	17
		6	5	3	8
		7	1	3	4
		9	1	3	4
		Total	15	18	33
			0.45	0.55	1.0
Present		5	7	7	14
		6	6	3	9
		7	1	0	1
		9	0	1	1
		10	0	1	1
		Total	14	12	26
			0.54	0.46	1.0