Effects of posttreatment skeletal maturity measured with the cervical vertebral maturation method on incisor alignment relapse.

Introduction: Our aim was to test the hypothesis that relapse of incisor alignment is associated with skeletal maturity at the end of treatment, as assessed with the cervical vertebral maturation (CVM) method.

Methods: This was a case-control study with information from the postretention database at the University of Washington. Mandibular incisor irregularity (II) at least 10 years out of retention (T3) was used to define the subjects (II >6 mm, relapse group) and the controls (II <3.

Trabecular and cortical bone as risk factors for orthodontic relapse.

Introduction: Dental relapse of the mandibular incisors after orthodontic treatment is a common problem, and few risk factors have been identified. The purpose of this case-control study was to evaluate whether the amount or the structure of mandibular bone affects the potential for postorthodontic mandibular incisor relapse.

Methods: The subject sample was selected from the postretention database at the University of Washington.