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Related Experiment Video

Updated: Oct 3, 2025

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

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

Published on: December 20, 2024

Bracket Bonding to All-Ceramic Materials with Universal Adhesives.

Cecilia Goracci¹, Giuseppe Di Bello¹, Lorenzo Franchi²

¹Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy.

Materials (Basel, Switzerland)

|February 15, 2022

Summary

Universal adhesives show promise for bracket bonding to polished lithium disilicate (LDS) and monolithic zirconia (MZ) ceramic surfaces. However, adhesion to glazed surfaces remains a clinical challenge for all tested adhesives.

Keywords:

bonding bracket lithium disilicate glass ceramic monolithic zirconia universal adhesive

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

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Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing

Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing

Published on: July 3, 2020

Area of Science:

Dental Materials Science
Biomaterials Engineering
Orthodontic Adhesion Technology

Background:

Increasing use of ceramic restorations necessitates reliable bracket bonding methods.
Lithium disilicate (LDS) and monolithic zirconia (MZ) are common ceramic materials in dental restorations.
Evaluating universal adhesives for bracket adhesion to these surfaces is crucial for clinical success.

Purpose of the Study:

To assess the efficacy of universal adhesives in bonding brackets to polished and glazed LDS and MZ.
To compare the bracket bond strength (SBS) achieved with different universal adhesives and a control primer.
To analyze failure types using the Modified Adhesive Remnant Index (ARI).

Main Methods:

120 brackets were bonded to polished/glazed LDS and MZ blocks using three adhesives: Scotchbond™ Universal Adhesive (SU), Assure Plus (AP), and Transbond™ XT Primer (XTP).
Shear Bond Strength (SBS) was measured for each group.
Failure modes were assessed using the Modified Adhesive Remnant Index (ARI).

Main Results:

Scotchbond™ Universal Adhesive (SU) demonstrated significantly superior SBS on polished LDS compared to AP and XTP.
Both SU and Assure Plus (AP) significantly improved bracket retention on polished MZ compared to XTP.
All tested adhesives exhibited low SBS values on glazed LDS and MZ, falling below clinical acceptability thresholds.

Conclusions:

Universal adhesives SU and AP show potential for bonding brackets to polished LDS and MZ surfaces.
Current universal adhesives may not provide sufficient bond strength for bracket adhesion to glazed ceramic surfaces.
Further research is needed to optimize adhesion to glazed ceramic restorations in orthodontics.