After orthodontic treatment, which teeth are most prone to relapse (recidivism)?

Lower (mandibular) incisors are the teeth most prone to post-orthodontic relapse, especially rotational/crowding relapse, which is why fixed lingual retainers are commonly placed there.Other options: Maxillary incisors and canines relapse less predictably than crowded lower incisors.Key exam takeaway: Lower incisor crowding is the most relapse-prone; bonded lower retainers help maintain alignment.