Oral Health Knowledge of Periodontal Disease among University Students

Table 5

Distribution of responses to oral and general health knowledge by year of study (𝑛= 250: first year 137 and final year 113).

Questions	First year (%)	Final year (%)	P value (𝜒^2 test)
(1) Do we get rid of bad breath by using mouthwashes?
(a) Yes*	45	90
(b) No	30	6	0.0001
(c) I do not know	25	4
(2) Is there any relation between gum disease and diabetes?
(a) Yes*	52	83
(b) No	20	7	0.0001
(c) I do not know	28	10
(3) Is there any relation between gum disease and heart diseases?
(a) Yes*	2	22
(b) No	82	32	0.0001
(c) I do not know	16	46
(4) Is there any relation between gum disease and smoking?
(a) Yes*	78	94
(b) No	8	2	0.0001
(c) I do not know	14	4

 *The correct answer.