Multivariate analysis of oral mucosal ulcers during orthodontic treatment

Table 4 Logistic regression analysis of factors associated with oral ulcer recurrence

Indicators	B	SE	Wald	P value	OR	95%CI
Smoking history	1.278	0.344	13.806	< 0.001	3.588	1.829–7.040
Tooth brushing frequency ≤ 1 time per day	1.063	0.352	9.111	0.003	2.894	1.452–5.770
Dentofacial deformity	−0.927	0.350	7.008	0.008	0.396	0.199–0.786
Hard toothbrush	2.067	0.342	36.555	< 0.001	7.905	4.044–15.451
Non-dietary preference for meat	−0.659	0.345	3.639	0.046	0.517	0.263–0.984
Disease in anterior tooth region	0.841	0.334	6.354	0.012	2.319	1.206–4.462

CI: Confidence interval; OR: Odds ratio.