Table 1.
Descriptive Statistical Parameters: Diagnosis, Angulation, Crown Shape, and Depth of Impaction of Maxillary and Mandibular Third Molars
| A Maxillary third molars | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Diagnosis N (%) | Angulation N (%) | Shape of the crown N (%) | Root morphology according to Alavi N (%) | Depth in relation to occlusal plane N (%) | |||||
| Impacted | 39 (63.93) | Vertical | 37 (60.66) | Oval | 7 (11.47) | Class I | 4 (6.55) | A | 6 (9.84) |
|
| |||||||||
| Partially impacted | 22 (36.07) | Mesioangular | 14 (22.95) | Cubic | 2 (3.28) | Class II | 5 (8.20) | B | 15 (24.59) |
|
| |||||||||
| Distoangular | 9 (14.75) | Rectangular | 1 (1.64) | Class III | 12 (19.67) | C | 40 (65.57) | ||
|
| |||||||||
| Horizontal | - | Rhomboid | 19 (31.15) | Class IV | 16 (26.23) | ||||
|
| |||||||||
| Linguoangular | - | Circular | 4 (6.55) | Class V | 2 (3.28) | ||||
|
| |||||||||
| Buccoangular | 1 (1.64) | Triangular | 22 (36.07) | Class VI | 2 (3.28) | ||||
|
| |||||||||
| Trapezoidal | 6 (9.84) | Class VII | 4 (6.55) | ||||||
|
| |||||||||
| Class VIII | 3 (4.92) | ||||||||
|
| |||||||||
| Class IX | 6 (9.84) | ||||||||
|
| |||||||||
| Class X | 7 (11.48) | ||||||||
|
| |||||||||
| Total | 61 (100) | Total | 61 (100) | Total | 61 (100) | Total | 61(100) | Total | 61 (100) |
|
| |||||||||
| B Mandibular third molars | |||||||||
|
| |||||||||
| Diagnosis N (%) | Angulation N (%) | Shape of the crown N (%) | Root morphology according to Machado N (%) | Depth in relation to occlusal plane N (%) | |||||
|
| |||||||||
| Impacted | 50 (43.48) | Vertical | 71 (61.74) | Oval | 44 (38.26) | Convergent | 16 (13.91) | A | 39 (33.91) |
|
| |||||||||
| Partially impacted | 65 (56.52) | Mesioangular | 32 (27.82) | Cubic | 19 (16.52) | Parallel | 25 (21.73) | B | 55 (47.83) |
|
| |||||||||
| Distoangular | 4 (3.48) | Rectangular | 12 (10.43) | Fused | 43 (37.39) | C | 21 (18.26) | ||
|
| |||||||||
| Horizontal | 3 (2.61) | Rhomboid | 4 (3.48) | Single | 4 (3.47) | - | - | ||
|
| |||||||||
| Linguoangular | 5 (4.35) | Circular | 7 (6.09) | Dilaceration | 19 (16.52) | ||||
|
| |||||||||
| Buccoangular | - | Triangular | 5 (4.35) | Divergent | 8 (6.95) | ||||
|
| |||||||||
| Trapezoidal | 24 (20.87) | ||||||||
|
| |||||||||
| Total | 115 (100) | Total | 115 (100) | Total | 115 (100) | Total | 115 (100) | Total | 115 (100) |