Table 2.
Mean face (external) and base (internal) slot dimensions of the upper right central incisor bracket and mean difference between the face (external) and internal slot height given in 1/1000th of an inch.
| Bracket | External Height |
% Deviation from Expected (0.022″) |
Internal Height |
% Deviation from Expected (0.022″) |
Mean Difference of External/ Internal Height |
p-Value | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| M | SD | CV % | M | SD | CV% | |||||
| American Orthodontics Radiance Plus® |
23.37 | 0.251 | 1.07% | 6.30% | 21.44 | 0.248 | 1.16% | −2.6% | 1.929 | ** |
| American Orthodontics 20/40® |
24.05 | 0.312 | 1.30% | 9.30% | 23.23 | 0.124 | 0.53% | 5.60% | 0.819 | ** |
| DB Orthodontics Spa® | 23.41 | 0.455 | 1.94% | 6.40% | 21.75 | 0.609 | 2.80% | −1.1% | 1.661 | *** |
| Forestadent Glam® | 23.71 | 0.227 | 0.96% | 7.80% | 21.11 | 0.632 | 2.99% | −4.1% | 2.583 | *** |
| Ormco Symetri® | 24.82 | 0.884 | 3.56% | 12.80% | 21.36 | 0.153 | 0.72% | −2.9% | 3.465 | *** |
| OrthoCare Purity® | 22.96 | 0.438 | 1.91% | 4.40% | 22.47 | 0.269 | 1.20% | 2.10% | 0.488 | ** |
| TOC Ghost Advanced® |
26.59 | 0.545 | 2.05% | 20.90% | 24.31 | 0.966 | 3.97% | 10.50% | 2.284 | ** |
| TOC Verve® | 23.76 | 0.271 | 1.14% | 8% | 23.39 | 0.439 | 1.88% | 6.30% | 0.370 | 0.105 |
| TP Orthodontics ClearVu® | 24.01 | 0.318 | 1.32% | 9.10% | 23.9 | 0.18 | 0.75% | 8.60% | 0.094 | 0.408 |
| TP Orthodontics InVu® | 24.33 | 0.202 | 0.83% | 10.60% | 24.17 | 0.388 | 1.61% | 9.90% | 0.158 | 0.397 |
| 3M Clarity Advanced® |
23.27 | 0.410 | 1.76% | 5.80% | 22.67 | 0.347 | 1.53% | 3.10% | 0.598 | 0.086 |
(*** p ≤ 0.001; ** p ≤ 0.01) using Paired t-Test. M: mean, SD: standard deviation, CV: coefficient of variations.