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Table 1 Descriptive analysis of subjects’ ages, gender, bracket losses, and treatment duration

From: Lingual orthodontic treatment duration: performance of two different completely customized multi-bracket appliances (Incognito and WIN) in groups with different treatment complexities

  Incognito (n = 220) WIN (n = 156) Total (n = 376)
Patients’ ages at T0 [years; Mean ± SD] 17.27 ± 7.20 17.42 ± 8.45 17.33 ± 7.73
Treatment Duration [months; Mean ± SD] 24.27 ± 7.4 18.12 ± 5.11 21.72 ± 7.21
Sex [m/f] n (%) 99/121 (45.0%/55.0%) 73/83 (46.8%/53.2%) 172/204 (45.7%/54.3%)
Brackets lost per subject with re-bonding Mean [Min/Max/Median] 2.54 [0/12/2] 2.15 [0/16/2] 2.38 [0/16/2]
Brackets lost per subject w/o re-bonding Mean [Min/Max/Median] 0.5 [0/5/0] 0.44 [0/4/0] 0.47 [0/5/0]