From: Survival analysis of three types of maxillary and mandibular bonded orthodontic retainers: a retrospective cohort
Retainium
Orthoflex
Bond-A-Braid
P value†
Jaw
BOP
Count
Column N %
Maxilla
BOP+
2
5.8
4
9.5
4.7
0.738
BOP−
32
94.2
38
90.5
40
95.3
Mandible
3
8.8
7.1
0.897
31
91.2
39
92.9