Table 2.
Percentage of Patients Whose Occlusal Features Remained Stable, Improved, or Worsened Between T2 and T3a
|
|
% Stability (95% CI) |
% Instability |
|
| % Improved (95% CI) |
% Worse (95% CI) |
||
| Upper anterior segments | 77.1 (66.1–85.4) | 8.6 (3.9–17.4) | 14.3 (7.9–24.3) |
| Lower anterior segments | 67.1 (55.5–77.0) | 4.3 (1.5–11.9) | 28.6 (19.3–40.1) |
| Buccal occlusion: antero-posterior | 42.9 (31.9–54.5) | 40.0 (29.3–51.7) | 17.1 (10.1–27.6) |
| Buccal occlusion: vertical | 100.0 (94.8–100.0) | 0.0 (0.0–5.2) | 0.0 (0.0–5.2) |
| Buccal occlusion: transverse | 81.2 (70.7–88.8) | 5.7 (2.3–13.8) | 7.1 (3.1–15.6) |
| Overjet | 70.0 (58.4–79.4) | 15.7 (9.0–25.9) | 14.3 (7.9–24.3) |
| Overbite | 55.7 (44.1–66.7) | 15.7 (9.0–25.9) | 28.5 (19.3–40.1) |
| Open bite | 82.7 (72.4–89.9) | 8.6 (3.9–17.4) | 8.6 (3.9–17.4) |
| Midline | 85.7 (75.6–92.1) | 7.1 (3.1–15.6) | 7.1 (3.1–15.6) |
a
T2 indicates posttreatment PAR; T3, 4 to 10 years after treatment; and 95% CI, 95% confidence interval.