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Related Experiment Video

Updated: May 28, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
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Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

A comparative study of lingual bracket bond strength.

Luca Lombardo1, Andrea Kaplan, Roberto Lapenta

  • 1Postgraduate School of Orthodontics, University of Ferrara, Via Montebello 31, Ferrara, Italy. dott.lulombardo@gmail.com

Orthodontics : the Art and Practice of Dentofacial Enhancement
|October 25, 2011
PubMed
Summary

STB lingual brackets demonstrated superior performance. Sandblasting significantly improved bracket mechanics, while the bonding method had minimal impact. The adhesive-bracket interface was the most frequent failure site.

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Area of Science:

  • Orthodontics
  • Biomaterials Science
  • Dental Mechanics

Background:

  • Lingual brackets offer aesthetic advantages in orthodontic treatment.
  • Understanding bracket-adhesive interface mechanics is crucial for successful bonding.

Purpose of the Study:

  • To compare adhesive potential and failure mechanics of four lingual bracket brands.
  • To evaluate the effect of sandblasting and bonding technique on enamel and bracket performance.

Main Methods:

  • Tested 160 premolars with four lingual bracket types (STB, ORG, Magic, Stealth).
  • Compared direct vs. indirect bonding, with and without sandblasting.
  • Assessed adhesion strength and used the Adhesive Remnant Index (ARI) via electron microscopy.

Main Results:

  • Significant differences found among bracket types; STB performed best.
  • Sandblasting generally improved mechanical features of lingual appliances.
  • Bonding method did not significantly affect bond strength; the adhesive-bracket interface was the most common failure site.

Conclusions:

  • STB lingual brackets showed superior performance.
  • Sandblasting is an effective method for enhancing lingual bracket mechanical properties.
  • The bracket-adhesive interface is the primary location for bond failures.