Incidence and risk factors of alveolar bone dehiscences and fenestrations after clear aligner therapy with Class II elastics: a retrospective study.

ABSTRACT:

Background

In clear aligner therapy (CAT), Class II elastics are widely used to reinforce the anchorage during the distalization of upper molars, however, their association with alveolar bone dehiscences (ABDs) and fenestrations (ABFs) in the anterior region remains unclear. The aim of this research is to assess the incidence of ABDs/ABFs in adult patients undergoing non-extraction CAT with Class II elastics, and to explore risk factors associated with the occurrence of ABDs/ABFs.

Methods

Thirty adult patients with Class II malocclusion who underwent non-extraction CAT with Class II intermaxillary elastics were enrolled in this study. Cone-beam computed tomography (CBCT) images were obtained before (T0) and immediately after (T1) CAT to assess the occurrence of ABDs/ABFs on

SUBMITTER: Wang C 

PROVIDER: S-EPMC12034186 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature