Table 1. Proportion of Bracket Failures Between Different Groups.
Characteristic | Category | N Bonded | N Failed | % Failed | P Value |
---|---|---|---|---|---|
Curing method | 6 s high | 340 | 4 | 1.18 | 1.000 |
20 s low | 340 | 4 | 1.18 | ||
Gender | Male | 340 | 4 | 1.18 | 1.000 |
Female | 340 | 4 | 1.18 | ||
Jaw | Mandible | 340 | 5 | 1.47 | .725 |
Maxilla | 340 | 3 | 0.88 | ||
Side | Right | 340 | 5 | 1.47 | .725 |
Left | 340 | 3 | 0.88 | ||
Anterior/posterior | Anterior | 408 | 2 | 0.49 | .065 |
Posterior | 272 | 6 | 2.21 | ||
Quadrant | Mandibular left | 170 | 1 | 0.59 | .547 |
Mandibular right | 170 | 4 | 2.35 | ||
Maxillary left | 170 | 2 | 1.18 | ||
Maxillary right | 170 | 1 | 0.59 |