Research Article
Bracket Failure in Orthodontic Patients: The Incidence and the Influence of Different Factors
Table 1
Association between bracket failure and different variables.
| | Teeth group | Mandible (percentage) | Maxilla (percentage) | value | | Anterior | Posterior | Anterior | Posterior |
| | Overbite | Average overbite | 13 (7.2) | 17 (9.4) | 18 (10) | 26 (14.4) | <0.01 | | Decreased overbite | 0 | 4 (2.2) | 8 (4.4) | 15 (8.3) | | Increased overbite | 27 (15) | 39 (21.7) | 3 (1.7) | 10 (5.56) |
| | Age group | <18 | 19 (10.6) | 33 (18.3) | 21 (11.7) | 32 (17.8) | 0.17 | | ≥18 | 21 (11.7) | 27 (15) | 8 (4.4) | 19 (10.6) |
| | Gender | Female | 21 (11.7) | 24 (13.3) | 16 (8.9) | 25 (13.9) | 0.47 | | Male | 19 (10.6) | 36 (20) | 13 (7.2) | 26 (14.4) |
| | Skeletal class | Class I | 7 (3.9) | 12 (6.7) | 8 (4.4) | 12 (6.7) | 0.09 | | Class II | 29 (16.1) | 44 (24.4) | 19 (10.6) | 27 (15) | | Class III | 4 (2.2) | 4 (2.2) | 2 (1.1) | 12 (6.7) |
| | Period | Less than 6 months | 31 (17.2) | 41 (22.78) | 25 (13.9) | 28 (15.6) | <0.01 | | 6-11 months | 2 (1.1) | 8 (4.4) | 0 | 5 (2.8) | | 12-23 months | 2 (1.1) | 5 (2.8) | 4 (2.2) | 14 (7.8) | | More than 24 months | 5 (2.8) | 6 (3.3) | 0 | 4 (2.2) |
| | Wire | 16 NiTi | 20 (11.1) | 30 (16.7) | 8 (4.4) | 16 (8.9) | 0.07 | | NiTi | 7 (3.9) | 6 (3.3) | 10 (5.6) | 12 (6.7) | | NiTi | 3 (1.7) | 4 (2.2) | 5 (2.8) | 7 (3.9) | | SS | 10 (5.6) | 20 (11.1) | 6 (3.3) | 16 (8.9) |
| | Total | | 40 (22.2) | 60 (33.3) | 29 (16.1) | 51 (28) | |
|
|
