Table 2.
Comparison of clinical and dental examination data of study groups
| EWL | SWL | RWL | p value | |
|---|---|---|---|---|
| n, | 35 | 35 | 30 | - |
| OHI-S |
3.2 ± 1.8 2.8(0.8–6.3) |
3.2 ± 1.6 3.5(0.8-6.0) |
3.2 ± 1.5 2.9(0.8–6.9) |
a 0.9676 |
| PAI |
2 ± 1 2(1–2) |
2 ± 1 2(1–2) |
1 ± 1 1(1–2) |
c 0.6880 |
| MaxA/ManA/ManPre, n | 9/16/10 | 17/7/11 | 11/7/12 | C 0.1060 |
| Number of dental crown, n |
1.8 ± 2.0 1.0(0.0–7.0) |
2.4 ± 4.6 0.0(0.0–16.0) |
2.1 ± 2.6 1.5(0.0–12.0) |
A 0.3130 |
| RCF, n |
1.8 ± 2.0 1.0(0.0–9.0) |
4.1 ± 3.1 4.0(0.0–11.0) |
4.2 ± 3.7 3.0(0.0–17.0) |
B 0.8559 |
| NF, n |
2.7 ± 2.1 2.0(0.0–7.0) |
2.6 ± 1.6 3.0(0.0–6.0) |
2.7 ± 1.8 3.0(0.0–8.0) |
B 0.9760 |
| MT, n |
6 ± 6 4(0–15) |
6 ± 6 4(0–20) |
4 ± 4 3(0–13) |
B 0.1957 |
| PRA, n(%) | 29(83%) | 17(49%) | 29(%97%) | A<0.0001 |
| Intergroup p | < 0.01, > 0.05, < 0.001 | |||
| TADS, week |
1.1 ± 0.7 0(2 − 1) |
0.5 ± 0.7 0(3 − 0) |
1.4 ± 0.6 0(2 − 1) |
A<0.0001 |
| Intergroup p | < 0.01, > 0.05, 0.001 | |||
| Working length, mm | 20.7 ± 1.7 | 22.3 ± 2.5 | 21.2 ± 2.5 | B 0.0095 |
| Intergroup p | < 0.01, > 0.05, > 0.05 | |||
A Kruskal-Wallis Test (Nonparametric ANOVA) with post-test (Dunn’s Multiple-Comparisons Test), B One-way ANOVA with post-test (Tukey Kramer Multiple-Comparisons Test), C Pearson Chi-Square test. Statistical significance level = p < 0.05. When p values obtained by ANOVA tests are < 0.05, p values are determined by making comparisons between groups (Group 1–2, Group 1–3 and Group 2–3, respectively). Parametric data are given as mean ± standard deviation. MaxA/ManA/ManPre: Maxillary anterior /mandibular anterior / Mandibular premolars, EWL: working length determination with EAL method, SWL: Simultaneous working length determination, RWL: Radiographic working length, OHI-S: Simplified oral hygiene index, PAI: Periapical index score, RCT: Root canal treatment, NF: Number of filling, MT: Missing teeth, PRA: Number of patients receiving analgesia, TADS: Total number of analgesics dose per week