Table 3.
Subjects |
T with Ra (n = 48) |
T without R (n = 48) |
UnT (n = 48) |
||||||
T0 |
T1 |
T5 |
T0 |
T1 |
T5 |
T0 |
T1 |
T5 |
|
Without recessions, % | 43 89.58 | 39 81.25 | 30 62.50 | 45 93.75 | 43 89.58 | 32 66.67 | 48 100 | 43 89.58 | 38 79.17 |
With recessions, % | 5 10.42 | 9 18.75 | 18 37.50 | 3 6.25 | 5 10.42 | 16 33.33 | 0 (0) | 5 10.42 | 10 20.83 |
With 1 recession, n | 4 | 6 | 11 | 1 | 4 | 8 | – | 3 | 6 |
With 2 recessions, n | 1 | 2 | 5 | 2 | 1 | 6 | – | 1 | 4 |
With 3 recessions, n | – | – | 2 | – | – | 2 | – | – | – |
With 4 recessions, n | – | 1 | – | – | – | – | – | – | – |
With 5 recessions, n | – | – | – | – | – | – | – | 1 | – |
With 6 recessions n | – | – | – | – | – | – | – | – | – |
Total recessions n | 6 | 14 | 27 | 5 | 6 | 26 | 0 | 10 | 14 |
T with R indicates treatment with retention, experimental group (orthodontically treated patients with fixed lingual retainer); T without R, treatment without retention, experimental group (orthodontically treated patients without fixed lingual retainer); UnT, control group of healthy untreated patients.