08 August 2024 : Clinical Research
Comprehensive Analysis of Mandibular First Molar Root and Canal Morphology in Saudi Patients Using Cone Beam Computed Tomography (CBCT)
Mey A. Al-Habib
1ABCDEFG*, Sara Almarzouki2BCDF, Mona Alsulaiman1ABCDEFG, Loai Alsofi 1ABCDEFG
DOI: 10.12659/MSM.945364
Med Sci Monit 2024; 30:e945364
Table 2 Comparisons of permanent mandibular first molars characteristics by ethnic group.
| Characteristic n (%) | Saudi (n=1554) | Non-Saudi (n=527) | χ2 value | P value* |
|---|---|---|---|---|
| Number of roots | ||||
| 1 | 2 (0.13) | 0 (0.00) | 0.84 | 0.886 |
| 2 | 1490 (95.88) | 508 (96.39) | ||
| 3 | 62 (3.99) | 19 (3.61) | ||
| Number of canals | ||||
| 1 | 1 (0.06) | 0 (0.00) | 3.798 | 0.247 |
| 2 | 8 (0.51) | 6 (1.14) | ||
| 3 | 1218 (78.38) | 399 (75.71) | ||
| 4 | 327 (21.04) | 122 (23.15) | ||
| χ – Chi-square test. * Fisher exact test and its value are used because Pearson chi-square is not applicable. | ||||