The Open Dentistry Journal

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Debonding Shear Strength of Orthodontic Tubes Bonded to Skeletal Anchorage Miniplates with Different Agents

Lucas Da Silva Meirelles1, Orion L. Haas1, *, Neimar Scolari1, Mauricio Pereira1, Andre Favoretto1, Rogério de Oliveira1
1 Department of Oral and Maxillofacial Surgery, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil



Most miniplates used for skeletal anchorage lack built-in orthodontic devices. To address this issue, orthodontists must use creative solutions, such as bonding buttons, brackets, or tubes directly to the miniplates, thus making them more versatile devices that provide a wider range of tooth movement possibilities. The purpose of the present study was to ascertain the debonding strength in Megapascals (MPa) of orthodontic accessories bonded to skeletal anchorage miniplates with different bonding agents.


Forty specimens were divided into two equal groups by bonding agent: Group 1, resin (Transbond XT®, 3M ESPE); Group 2, cyanoacrylate (Scotchbond®, 3M ESPE). Shear strength testing was performed in an EMIC DL-2000 universal testing machine.


The results obtained were 2.28 ± 0.44 MPa for Group 1 and 4.90 ± 0.76 MPa for Group 2. The Kolmogorov-Smirnov test was used to assess the normality of data distribution. Student's t-test was used to compare means in the response variable.


A statistically significant difference was observed between groups. However, both bonding agents provided strength in excess of that needed for secure orthodontic tooth movement.

Keywords: Orthodontic anchorage procedures, Orthodontic tooth movement, Shear strength, Orthodontic tubes bonded, Titanium miniplates, Tooth movement.

Article Information

Identifiers and Pagination:

Year: 2019
Volume: 13
First Page: 551
Last Page: 556
Publisher Id: TODENTJ-13-551
DOI: 10.2174/1874210601913010551

Article History:

Received Date: 21/08/2019
Revision Received Date: 17/10/2019
Acceptance Date: 18/12/2019
Electronic publication date: 31/12/2019
Collection year: 2019

© 2019 Haas et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Oral and Maxillofacial Surgery, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, Email:

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