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Table 3 Type of the first failure for the maxilla

From: Survival of maxillary and mandibular bonded retainers 10 to 15 years after orthodontic treatment: a retrospective observational study

  .016″ × .022″ braided SS four incisors (N = 82)
Male (N = 24) Female (N = 58) Total (N = 82)
0: intact bonding 13 48 61 (74.4%)
1: full retainer out and rebonded 0 0 0 (0%)
2: fracture 0 0 0 (0%)
3: detachment 3 3 6 (7.3%)
4: composite damage 6 5 11 (13.4%)
5: retainer replaced by a new retainer 0 0 0 (0%)
6: no retainer in situ at T3 1 1 2 (2.4%)
7: multiple types of failures at the same time 1 1 2 (2.4%)
Total failures per retainer   21 (25.6%)