Table 3. Different treatment protocols for cracked teeth according to the periodontal probing depth.
| Year | PPD | Total N | Prov → Cr | Prov → Cr → RCT | Prov and RCT → Cr |
|---|---|---|---|---|---|
| Abbreviations: Cr, permanent crown; PPD, periodontal probing depth; Prov, provisional crown; RCT, root canal treatment. Note: p -Values were computed using the two-sample proportion test to analyze differences in sample proportions among the PPD subgroups. p -Value [1]: between <3 and 4–6 mm. p -Value [2]: between <3 and >6 mm. p -Value [3]: between 4–6 and >6 mm. A p -value <0.05 was considered to indicate statistical significance. | |||||
| 2009 | <3 mm | 40 (100) | 20 (50) | 3 (7.5) | 17 (42.5) |
| 4–6 mm | 25 (100) | 9 (36) | 0 (0) | 16 (64) | |
| >6 mm | 3 (100) | 0 (0) | 0 (0) | 3 (100) | |
| Total | 68 (100) | 29 (42.6) | 3 (4.4) | 36 (52.9) | |
| p -Value [1] | 0.396 | 0.427 | 0.152 | ||
| p -Value [2] | 0.283 | 1.000 | 0.185 | ||
| p -Value [3] | 0.544 | – | 0.544 | ||
| 2019 | <3 mm | 117 (100) | 68 (58.1) | 10 (8.5) | 39 (33.3) |
| 4–6 mm | 53 (100) | 28 (52.8) | 4 (7.5) | 21 (39.6) | |
| >6 mm | 14 (100) | 6 (42.9) | 0 (0) | 8 (57.1) | |
| Total | 184 (100) | 102 (55.4) | 14 (7.6) | 68 (37) | |
| p -Value [1] | 0.633 | 1.000 | 0.534 | ||
| p -Value [2] | 0.422 | 0.545 | 0.144 | ||
| p -Value [3] | 0.716 | 0.670 | 0.382 | ||
| 2009+2019 | <3 mm | 157 (100) | 88 (56.1) | 13 (8.3) | 56 (35.7) |
| 4–6 mm | 78 (100) | 37 (47.4) | 4 (5.1) | 37 (47.4) | |
| >6 mm | 17 (100) | 6 (35.3) | 0 (0) | 11 (64.7) | |
| Total | 252 (100) | 131 (52) | 17 (6.7) | 104 (41.3) | |
| p -Value [1] | 0.268 | 0.541 | 0.111 | ||
| p -Value [2] | 0.169 | 0.455 | 0.038 | ||
| p -Value [3] | 0.521 | 0.774 | 0.306 | ||