Clinical Study
Radiographic and Clinical Findings of Single-Visit Root Canal Treatments with Apical Enlargement in Necrotic Teeth: A Retrospective Cohort Study
Table 3
Distribution of the prognostic factors and their significance on the healed and nonhealed groups (post hoc values).
| | | Healed () | Nonhealed () | value | Post hoc power | (%) | (%) |
| Preoperative | Preoperative pain | Absent | 53 | 52 (98.1) | 1 (1.9) | 0.566a | 0.148 | Present | 37 | 35 (94.6) | 2 (5.4) | Radiolucency | <2 mm | 26 | 26 (100) | 0 (0) | 0.778b | 0.172 | 2–5 mm | 36 | 34 (94.4) | 2 (5.6) | >5 mm | 26 | 25 (96.2) | 1 (3.8) | Preoperative PAI score | 1 | 1 | 1 (100) | 0 (0) | 0.751b | 0.134 | 2 | 3 | 3 (100) | 0 (0) | 3 | 57 | 55 (96.5) | 2 (3.5) | 4 | 13 | 13 (100) | 0 (0) | 5 | 16 | 15 (93.8) | 1 (6.3) | Periodontal defects | Absent | 85 | 82 (96.5) | 3 (3.5) | 0.999a | 0.071 | Present | 5 | 5 (100) | 0 (0) | Root filling density | Dense and tapered | 90 | 87 (96.7) | 3 (3.3) | — | — | Voids present | 0 | 0 (0) | 0 (0) | Poorly condensed | 0 | 0 (0) | 0 (0) | Length of root filling | Adequate | 90 | 87 (96.7) | 3 (3.3) | — | — | Short | 0 | 0 (0) | 0 (0) | Long | 0 | 0 (0) | 0 (0) | Intraoperative | Sealer extrusion | No | 49 | 49 (100) | 0 (0) | 0.091a | 0.486 | Yes | 41 | 38 (92.7) | 3 (7.3) | Postoperative | Restoration at follow-up | Definitive filling | 30 | 28 (93.3) | 2 (6.7) | 0.257a | 0.238 | Crown | 60 | 59 (98.3) | 1 (1.7) | Postoperative signs/symptoms | Absent | 89 | 87 (97.8) | 2 (2.2) | 0.033,a | 0.999 | Present | 1 | 0 (0) | 1 (100) | Radiolucency | Absent | 87 | 86 (98.9) | 1 (1.1) | 0.002,a | 0.999 | Present | 3 | 1 (33.3) | 2 (66.7) | Post | Absent | 61 | 58 (95.1) | 3 (4.9) | 0.548a | 0.228 | Present | 29 | 29 (100) | 0 (0) |
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aFisher’s exact test. bFisher-Freeman-Halton exact test. . . PAI: periapical index. |