Table 3.

Prevalence of TMD and frequency distribution of TMD diagnosis based on symptom questionnaire and clinical examination of Axis-I of Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) among the variables

Variable	Present f (%)	Absent f (%)	Total (N)
Overall prevalence of TMD (at least one TMD)	91 (36.99)	155 (63)	246
Prevalence of pain-related TMD	68 (27.64)
Prevalence of intra-articular disorders	25 (10.16)

Diagnosis based on DC/TMD axis-I—combination of diagnostic questionnaire and clinical examination
			Independent variables
			Age			Gender		Marital status		Academic level		GPA
		Total	< 20	20–25	> 25	Male	Female	Single	Married	Preclinical	Clinical	< 3	≥ 3
Pain-related TMD	Myalgia	62 (68.13)	12 (19.35)	31 (50)	19 (30.64)	21 (38.87)	41 (66.12)	24 (38.70)	38 (61.29)	22 (35.48)	40 (64.51)	37 (59.67)	25 (40.32)
	Myofascial pain with referral	6 (6.59)	0	4 (66.66)	2 (33.33)	1 (16.66)	5 (83.33)	4 (66.66)	2 (33.33)	0	6	4 (66.66)	2 (33.33)
	Arthralgia	12 (13.18)	2 (16.66)	6 (50)	4 (33.33)	3 (25)	9 (75)	5 (41.66)	7 (58.33)	4 (33.33)	8 (66.66)	5 (41.66)	7 (58.33)
	Headache attributed to TMD	14 (15.38)	3 (21.42)	6 (42.85)	5 (35.71)	3 (21.42)	11 (78.57)	6 (42.85)	8 (57.14)	5 (35.71)	9 (64.28)	6 (42.85)	8 (57.14)
Intra-articular disorders	DDWR	21 (23.07)	4 (19.04)	11 (52.38)	6 (28.57)	8 (38.09)	13 (61.90)	9 (42.85)	12 (57.14)	4 (19.04)	17 (80.95)	11 (52.38)	6 (28.57)
	DDWRIL	3 (3.29)	0	1 (33.33)	2 (66.66)	1 (33.33)	2 (66.66)	0	2 (66.66)	1 (33.33)	2 (66.66)	2 (66.66)	1 (33.33)
	DDWTRLO	1 (1.09)	0	0	1 (100)	0	1 (100)	0	1	0	1 (100)	0	1 (100)

DDWR disc displacement with reduction, DDWRIL disc displacement with reduction—with intermittent locking, DDWTRLO disc displacement without reduction—without Limited opening; individuals could qualify for more than one diagnosis