Patients n (%)
ERR % T2 T3
0 10 (21%) 3 (6%)
≥1 and ≤4 18 (38%) 18 (38%)
>4 and ≤8 18 (38%) 18 (38%)
>8 and ≤12 1 (2%) 8 (17%)
Total 47 (100%) 47 (100%)
Table 2: Descriptive statistics of the number of patients in relation to percentage of root resorption after six (T2) and 12 (T3) months of treatment (more resorbed central incisor).