Table 1 Clinical aspects after 3-years of follow-up, comparing to baseline TFI score
From: Clinical changes in the severity of dental fluorosis: a longitudinal evaluation
TFI score at baseline | Three-year changes in TFI score | |||
|---|---|---|---|---|
TFI ≥ 1 | Teeth | Lower | Equal | Higher |
n | n (%) | n (%) | n (%) | |
TF 1 | 416 | 47 (11.3) | 185 (44.5) | 184 (44.2) |
TF 2 | 416 | 150 (36.1) | 213 (51.2) | 53 (12.7) |
TF 3 | 248 | 102 (41.2) | 116 (46.8) | 30 (12) |
TF 4 | 4 | 4 (100.0) | – | – |
TF 5 | 33 | 28 (84.8) | 3 (9.1) | 2 (6.1) |
Total | 1117 | 331 | 517 | 269 |