Research Article

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

Table 3

Changes in clinical parameters at baseline, before periodontal therapy, and 6 months after periodontal therapy.

Clinical parametersBaseline (n = 140)Before periodontal therapy (n = 140)6 months after periodontal therapy (n = 140)

PD (mm, x ± s)6.46 ± 1.556.12 ± 1.515.03 ± 1.49Aa
CAL (mm, x ± s)6.35 ± 1.626.05 ± 1.864.57 ± 1.79Aa
SBI
 00 (0%)0 (0%)12 (9%)Aa
 116 (11%)15 (11%)38 (27%)
 232 (23%)35 (25%)38 (27%)
 346 (33%)50 (36%)30 (21%)
 446 (33%)40 (28%)22 (16%)
TM
 014 (10%)16 (11%)A24 (3%)Aa
 I32 (23%)30 (22%)40 (17%)
 II78 (56%)80 (57%)66 (59%)
 III16 (11%)14 (10%)10 (21%)
OHI-S (x ± s)2.38 ± 0.482.35 ± 0.390.89 ± 0.47Aa
Full-mouth periodontitis severity
 134 (24%)34 (24%)50 (36%)Aa
 262 (44%)62 (44%)56 (40%)
 344 (32%)44 (33%)34 (24%)
Alveolar resorption type
 Horizontal resorption64 (46%)65 (46%)66 (47%)
 Vertical resorption76 (54%)75 (54%)74 (53%)
CR ((x ± s))0.70 ± 0.110.72 ± 0.150.68 ± 0.12
PAI
 00 (0%)22 (16%)A28 (20%)Aa
 128 (20%)38 (27%)44 (31%)
 252 (37%)40 (29%)39 (28%)
 348 (34%)30 (21%)22 (16%)
 412 (9%)10 (7%)7 (5%)
Discomfort when chewing
 No27 (20%)72 (51%)A109 (78%)Aa
 Yes113 (80%)68 (49%)31 (22%)

Differences between the two groups were analyzed using the paired-sample t-test. Differences between the two groups were analyzed using the ridit test. Differences between the two groups were analyzed using the chi-square test. compared to baseline. compared to before periodontal therapy.