Long-Term Follow-Up of Nonsurgical Endodontic Treatments Performed by One Specialist: A Retrospective Cohort Study about Tooth Survival and Treatment Success

Table 1

Distribution of categorical variables.

		Treatment adequacy		Final symptomatology			Final radiolucency		Extraction
		Adequate	Inadequate	Absent	Provoked	Spontaneous	Absent	Present
Treatment	Primary (N = 1779)	1657 (93.1%)	122 (6.9%)	1679 (94.4%)	90 (5.0%)	10 (0.6%)	1730 (97.2%)	49 (2.8%)	128 (7.2%)
	Secondary (N = 900)	593 (65.9%)	307 (34.1%)	871 (96.8%)	26 (2.9%)	3 (0.3%)	843 (93.7%)	57 (6.3%)	60 (6.7%)
Technique	T1 (N = 787)	658 (83.6%)	129 (16.4%)	761 (96.7%)	26 (3.3%)	0 (0.0%)	740 (94.0%)	47 (6.0%)	104 (13.2%)
	T2 (N = 1261)	1065 (84.5%)	196 (15.5%)	1224 (97.1%)	36 (2.8%)	1 (0.1%)	1226 (97.2%)	35 (2.8%)	74 (5.9%)
	T3 (N = 631)	527 (83.5%)	104 (16.5%)	565 (89.5%)	54 (8.6%)	12 (1.9%)	607 (96.2%)	24 (3.8%)	10 (1.6%)
Baseline radiolucency	Absent (N = 1912)	305 (15.9%)	1607 (84.1%)	1852 (96.9%)	53 (2.8%)	7 (0.3%)	1880 (98.3%)	32 (1.7%)	109 (5.7%)
	Present (N = 767)	124 (16.2%)	643 (83.8%)	698 (91.0%)	63 (8.2%)	6 (0.8%)	693 (90.4%)	74 (9.6%)	79 (10.3%)
Baseline symptomatology	Absent (N = 1611)	1280 (79.5%)	331(20.5%)	1590 (98.7%)	19 (1.2%)	2 (0.1%)	1564 (97.1%)	57 (3.5%)	114 (7.1%)
	Provoked (N = 619)	552 (89.2%)	67 (10.8%)	563 (91.0%)	53 (8.5%)	3 (0.5%)	588 (95.0%)	31 (5.0%)	40 (6.5%)
	Spontaneous (N = 439)	400 (91.1%)	39 (8.9%)	388 (88.4%)	43 (9.8%)	8 (1.8%)	421 (95.9%)	18 (4.1%)	25 (5.7%)