Effectiveness of different orthodontic adhesives and a universal bonding resin on the bond strength of brackets to different ceramics
DOI:
https://doi.org/10.4322/bds.2022.e3073Abstract
Objective: The aim of this study was to evaluate the effectiveness of different adhesives on the shear bond
strength (SBS) of brackets bonded to different ceramic materials. Material and Methods: Fifty disk-shaped
specimens were produced from lithium disilicate (IPS e.max CAD) and monolithic zirconia (Cercon) materials.
Each specimen was polished with a three-step diamond polishing system. The polished ceramic surfaces were
conditioned with universal bonding resin (Assure Plus) without pre-treatment, except for two specimens.
Central brackets were bonded onto different ceramic specimens with different adhesives as follows: group 1:
conventional adhesive onto the lithium disilicate; group 2: one-step adhesive onto the lithium disilicate; group
3: conventional adhesive onto the monolithic zirconia; group 4: one-step adhesive onto the monolithic zirconia.
After thermal cycling, the specimens were subjected to the SBS test. The adhesive remnant index (ARI) scores
were also recorded to evaluate bond failure type. Kruskal–Wallis and Mann-Whitney U tests were used for
statistical analysis. Results: There were statistically significant differences among the SBS values (p<0.05). The
monolithic zirconia group with universal bonding resin and conventional orthodontic adhesive demonstrated
the highest SBS value (6.34 MPa) and ARI scores. The lithium disilicate group showed the lowest SBS value
(2.17 MPa) with the same protocol. No adhesive remained on the lithium disilicate specimens. Conclusion: Onestep
adhesive and universal bonding resin combination should not be considered as an alternative for lithium
disilicate and monolithic zirconia restorations. Conventional adhesive and universal bonding resin application
can be effective on non-pretreated ceramic surfaces during orthodontic bonding.
KEYWORDS
Bracket; Ceramics; Hydrophilic bonding resin; One-step adhesive.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Brazilian Dental Science uses the Creative Commons (CC-BY 4.0) license, thus preserving the integrity of articles in an open access environment. The journal allows the author to retain publishing rights without restrictions.
=================
COPYRIGHT TRANSFER AND RESPONSIBILITY STATEMENT
(PDF)
For all articles published in the BDS journal, copyright is retained by the authors. Articles are licensed under an open-access Creative Commons CC BY 4.0 license, meaning that anyone may download and read the paper for free. In addition, the article may be reused and quoted, provided that the original published version is cited. These conditions allow for maximum use and exposure of the work while ensuring that the authors receive proper credit. All metadata associated with published articles is released under the Creative Commons CC0 Universal Public Domain Dedication.
Before the submission, authors must obtain permission to reproduce any published material (figures, schemes, tables, or any extract of a text) that does not fall into the public domain or for which they do not hold the copyright. Permission should be requested by the authors from the copyright holder (usually the Publisher, please refer to the imprint of the individual publications to identify the copyright holder).
The authors hereby attest that the study is original and does not present manipulated data, fraud, or plagiarism. All names listed made a significant scientific contribution to the study, are aware of the presented data, and agree with the final version of the manuscript. They assume complete responsibility for the ethical aspects of the study.
This text must be printed and signed by all authors. The scanned version should be submitted as supplemental file during the submission process.
