Research Article

Prognostic Factors of Grade 2-3 Endo-Periodontal Lesions Treated Nonsurgically in Patients with Periodontitis: A Retrospective Case-Control Study

Table 2

Clinical parameters of the teeth in the high and low responder groups at baseline.

Clinical parametersHigh responder (n = 72)Low responder (n = 68) value

PD (mm, x ± s)5.78 ± 1.317.18 ± 1.49<0.001#
CAL (mm, x ± s)5.42 ± 1.527.35 ± 1.79<0.001#
SBI0.080
 110 (14%)6 (9%)
 220 (28%)12 (18%)
 326 (36%)20 (29%)
 416 (22%)30 (44%)
TM0.004#
 012 (17%)2 (3%)
 I22 (30%)12 (17%)
 II34 (47%)40 (59%)
 III4 (6%)14 (21%)
OHI-S (x ± s)2.40 ± 0.782.51 ± 0.360.620
Full-mouth periodontitis severity0.004#
 126 (36%)8 (12%)
 236 (50%)26 (38%)
 310 (14%)34 (50%)
Alveolar resorption type§0.089
 Horizontal resorption40 (56%)24 (35%)
 Vertical resorption32 (44%)44 (65%)
CR (x ± s)0.67 ± 0.080.73 ± 0.120.022
PAI0.002#
 122 (30%)6 (9%)
 230 (42%)22 (32%)
 318 (25%)30 (44%)
 42 (3%)10 (15%)
Number of root canals<0.001#
 128 (39%)12 (18%)
 230 (41%)12 (18%)
 312 (17%)30 (44%)
 42 (3%)14 (20%)

Differences between the two groups were analyzed using the independent-sample t-test. Differences between the two groups were analyzed using the ridit test. Differences between the two groups were analyzed using the Mann–Whitney U test. §Differences between the two groups were analyzed using the chi-square test. . .