Factors Affecting the Periapical Status of Root-Filled Canals: A Cross-Sectional Study at the Undergraduate Level

Table 6

Bivariate and multivariate logistic regression between independent variables and treatment failure ( = 154).

Independent variables	Level		Bivariate analysis			Multivariate analysis
			OR	CI 95%		OR	CI 95%
Teeth group	Single-rooted (reference)	113	1.00	—	—	1.00	—	—
	Two-rooted	41	0.58	0.24–1.40	0.232	0.54	0.20–1.43	0.221
Quality of root-filled canal	“Perfect” (reference)	64	1.00	—	—	1.00	—	—
	Satisfactory	71	0.80	0.37–1.73	0.580	0.69	0.29–1.64	0.405
	Poor	19	1.08	0.62–1.89	0.771	1.31	0.67–2.53	0.420
Quality of coronal restorations	Adequate (reference)	48	1.00	—	—	1.00	—	—
	Inadequate	81	1.17	0.51–2.71	0.702	0.80	0.29–2.19	0.668
Carious lesion	Absent (reference)	109	1.00	—	—	1.00	—	—
	Present	45	2.89	1.35–6.14	0.006	2.97	1.21–7.28	0.017
Bleeding on probing	Absent (reference)	105	1.00	—	—	1.00	—	—
	Present	49	2.38	1.13–5.02	0.021	2.45	1.02–5.84	0.043
Tooth mobility	Absent (reference)	136	1.00	—	—	1.00	—	—
	Present	18	3.25	1.18–8.88	0.022	4.23	1.23–14.51	0.022
Periodontal disease	Absent (reference)	120	1.00	—	—	1.00	—	—
	Present	34	0.81	0.33–1.97	0.644	0.34	0.10–1.11	0.076

Note. Statistical significance; OR, Odds Ratio; CI, confidence interval.