Table 4. Multivariate Logistic regression analysis of influence factors on MSM distal caries incidence.

Variables	B	SE	OR	OR (95%CI)		p
				Lower	Upper
Winter’s classification
Vertical position			1.000			0.000***
Mesioangular position	1.352	0.315	3.864	2.083	7.168	0.000***
Horizontal position	0.540	0.438	1.715	0.727	4.046	0.218
Distoangular position	0.055	0.561	1.057	0.352	3.176	0.921
Other types of position	-17.159	6.721.411	0.000	0.000		0.998
Pell & Gregory’s classification (Ramus)
Position A			1.000			0.000***
Position B	-1.112	0.328	0.329	0.173	0.626	0.001**
Position C	-2.127	0.766	0.119	0.027	0.535	0.005**
Contact status between IMTM and MSM
No contact			1.000			0.038*
Point contact	0.970	1.458	2.638	0.151	45.957	0.506
Surface-to-surface contact	2.305	1.029	10.023	1.334	75.303	0.025*
MSM distal alveolar bone condition
Compressive resorption			1.000
Inflammatory resorption	1.463	0.322	4.317	2.298	8.109	0.000***

*p<0.05, **p<0.01, ***p<0.001, indicating a statistically significant difference.