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Table 5 Data included in meta-analysis

From: What causes failure of fixed orthodontic retention? – systematic review and meta-analysis of clinical studies

Author, year of publication FRC failure rate 0.0175″ Multistranded SS Wire failure rate Follow – up (years) Total sample size (patients) Total sample size (reteiners)
Bolla et al. 2011 [26] 11/48 retainers 17/50 retainers 6 85 98
Nagani et al. 2020 [28] 67/156 teeth 49/156 teeth 1 52 52
Salehi et al. 2013 [30] 34/68 retainers 27/74 retainers 1,5 142 142
Scribante et al. 2011 [32] 13/90 teeth 23/102 teeth 1 34 34
Rose et al. 2002 [33] 5/10 retainers 1/10 retainers 2 20 20
Sfondrini et al. 2014 [37] 27/240 teeth 50/282 teeth 1 87 87
Sobouti et al. 2016 [38] 15/42 retainers 11/41 retainers 2 83 83