Oral Health Knowledge of Periodontal Disease among University Students

Table 4

Distribution of responses to periodontal health knowledge questions by faculty.

Questions	Humanities faculties (𝑛 = 150)			Scientific faculties (𝑛 = 100)			𝑃 value (𝜒^2 test)
	Yes (%)	No (%)	Do not know (%)	Yes (%)	No (%)	Do not know (%)
(1) What is the initiating factor of periodontal disease?
Bacterial plaque*	50	16	34	95	2	3	0.0001
Dental calculus	64	20	16	89	9	2
Malnourishment	56	15	29	86	9	5
Hereditary	24	40	36	88	5	7
Diabetes	10	46	44	93	3	4
Infection	15	55	35	15	83	2
(2) What is the most indicating sign of periodontal disease?
Gingival bleeding*	80	10	10	90	5	5	0.1
Gingival swelling	68	20	12	92	6	2
Gingival redness	68	14	18	89	10	1
Bad breath	25	40	35	93	3	4
(3) What is the effective measure to prevent periodontal disease?
Use toothbrush and dental floss*	75	10	15	96	4	0	0.0001
Good nourishment	80	10	10	87	4	9
Regular visits to the dentist	80	8	16	92	1	7

 *The correct answer.