Transfer accuracy of partially enclosed single hard vacuum-formed trays with 3D-printed models for lingual bracket indirect bonding: A prospective in-vivo study.

ABSTRACT:

Objective

This study aims to evaluate the clinical transfer accuracy of partially enclosed single hard vacuum-formed trays based on three-dimensional (3D) printed models for lingual bracket indirect bonding.

Materials and methods

Thirty-two consecutive patients receiving lingual orthodontic treatment were enrolled. Digital models with ideal bracket positions were 3D-printed, followed by fabrication of partially enclosed single hard vacuum-formed trays. Digital impressions captured actual bracket positions and were compared to the ideal positions. One-tailed t-tests assessed if errors were within clinically acceptable thresholds of 0.5 mm for linear measurements and 2° for angular measurements.

Results

Mean bracket transfer errors were 0.052 mm, 0.076 mm, 0.106 mm, 0.7

SUBMITTER: Nguyen VA 

PROVIDER: S-EPMC11753703 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature