15 March 2024: Database Analysis
Evaluating the Internal Anatomy of Maxillary Premolars in an Adult Saudi Subpopulation Using 2 Classifications: A CBCT-Based Retrospective Study
Mubashir Baig Mirza ABCDEFG*DOI: 10.12659/MSM.943455
Med Sci Monit 2024; 30:e943455
Table 3 Classification of root canal morphology of Maxillary Premolars – Ahmed et al and Vertucci.
| Ahmed | 1141 | 1142-1 | 1141-2-1 | 1142 | 214B1P1 | 1141-2 | 214B1-2P1 | 314MB1DB1P1 | |
|---|---|---|---|---|---|---|---|---|---|
| Vertucci | Type I | Type II | Type III | Type IV | Type V | Type XVI # | Type VIII | ||
| 55 (16.56%) | 21 (6.32%) | 4 (1.2%) | 22 (6.62%) | 218 (65.66%) | 6 (1.8%) | 1 (0.3%) | 5 (1.5%) | χ=0.819=0.997ns | |
| 240 (72.28%) | |||||||||
| 48 (14.81%) | 23 (7.09%) | 3 (0.92%) | 21 (6.48%) | 217 (66.97%) | 5 (1.54%) | 1 (0.3%) | 6 (1.85%) | ||
| 238 (73.45%) | |||||||||
| 103 (15.68%) | 44 (6.7%) | 7 (1.06%) | 43 (6.55%) | 435 (66.35%) | 11 (1.67%) | 2 (0.3%) | 11 (1.67%) | ||
| 478 (72.9%) | |||||||||
| 240 (69.76%) | 23 (6.68%) | 4 (1.16%) | 5 (1.45%) | 63 (18.31%) | 6 (1.74%) | 1 (0.29%) | 2 (0.58%) | χ=4.408=0.732ns | |
| 68 (19.76%) | |||||||||
| 245 (72.91%) | 27 (8.03%) | 2 (0.59%) | 5 (1.48%) | 51 (15.17%) | 2 (0.59%) | 1 (0.29%) | 3 (0.89%) | ||
| 56 (16.65%) | |||||||||
| 485 (71.33%) | 50 (7.35%) | 6 (0.87%) | 10 (1.46%) | 114 (16.74%) | 8 (1.16%) | 2 (0.29%) | 5 (0.73%) | ||
| 124 (18.20%) | |||||||||
| Tooth number – FDI tooth numbering system; 14, Maxillary right first premolar (MFP), 24, Maxillary Left first premolar (MFP), 15, Maxillary right second premolar (MSP), 25, Maxillary left second premolar. Type I, 1 canal from the orifice to the apex represented as 14 1 root with 1 canal according to Ahmed et al. Type II, originates as 2 canals merges and ends as 1 at the apex represented as 14 1 root with 2 canals at the beginning and ending as 1 at the apex according to Ahmed et al. Type III, 1 canal at the orifice divides into 2 along its length and then merges into 1 before exiting the root at the apex represented as 14 according to Ahmed showing 1 root with 1 canal which divides into 2 along its length then merges into 1 before exiting the apex. Type IV, originates as 2 canals and ends as 2 at the apex represented as 14 according to Ahmed et al showing 1 root with 2 root canals and 14BP showing 2 roots with separate canals in each buccal (B) and palatal (P) roots. Type V, originates as 1 canal then divides into 2 along its length and exits the root represented as 14 according to Ahmed et al showing 1 root with 1 canal in the coronal third then dividing into 2 before exiting the apex. Type XVI, Sert and Bayirli addition to Vertucci represented as 14BP according to Ahmed et al showing 2 roots with buccal root (B) having 1 canal in the coronal third and then dividing along its length and exiting as 2 while the palatal root (P) having 1 canal throughout its length. Type VIII, originates as 3 and ends as 3 canals at the apex represented as 14MBDBP according to Ahmed et al showing 3 roots with single canals in each mesiobuccal (MB) distobuccal (DB) and Palatal (P) roots. χ – Chi-square test; ns – non-significant with value ≤0.05. | |||||||||