Table 3. Results of logistic regression analysis (N=273).

Item	Coefficient	Standard Error	Odds Ratio
11. I think I can clean my teeth well without using toothpaste.	-1.42	0.44	0.24
16. I have used a dye to see how clean my teeth are.	-1.64	0.32	0.19
20. I have had my dentist tell me that I brush very well.	-1.07	0.36	0.34
2. My gums tend to bleed when I brush my teeth.	1.79	0.44	5.98
8. I think my teeth are getting worse despite my daily brushing.	2.70	1.09	14.95
17. I use a toothbrush which has hard bristles.	1.45	0.38	4.27
Constant	-4.86	2.52	0.01