Impacts of surface wear of attachments on maxillary canine distalization with clear aligners: a three-dimensional finite element study.

ABSTRACT:

Objectives

This study established three-dimensional finite element models to explore the impacts of surface wear of attachments on maxillary canine distalization with clear aligners, thereby guiding the clinical application of attachments and enhancing the efficiency of clear aligner therapy.

Materials and methods

Finite element models of maxillary canine distalization, including the maxilla, dentition, periodontal ligament, attachments (in both initial and worn states), and clear aligners, were established. Two groups of attachments (vertical rectangular attachment and optimized root control attachment) and five working conditions representing different degrees of attachment wear (M0, M2, M4, M6, and M8) were designed for canine distalization. Tooth displacement and equival

SUBMITTER: Li Q 

PROVIDER: S-EPMC11790557 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature