In Vitro Evaluation of Shear Bond Strength with OrthGuide Computer-Aided Indirect Bonding Variables: Tray Design Versions and Composite Texture
Keywords:
3D printed resin trays , Transparent thermoplastic holders , Dual curing composite, Shear bond strengthAbstract
Objective: This laboratory study aims to conduct a comparison between two indirect adhesive methods that share modern computer-assisted design and manufacturing with regard to measuring the ability of orthodontic brackets to resist shear forces applied to them during the treatment period , in addition to investigating the existence of a correlation between the quality of the adhesive used and its ability to reach the top resistant to the aforementioned forces.
Materials and Methods: The research sample consisted of 60 newly extracted upper premolars that were distributed into 4 groups according to the method of designing the orthodontic bracket molds and the type of adhesive material used in them. American mini master 0.022 MBT brackets were affixed to all of them using 3D printed resin holders and trays of Thermally plasticized polyvinyl siloxane, using two types of light curing composites and dual curing ones. Then, the resistance of these adhesive brackets to shear forces was tested through a set of appropriate laboratory tests.
Results: The results of this study showed that the greatest value of resistance to shear bond strength was in the group of brackets affixed via 3D printed resin holders and light cured composite, while there were no significant differences between the rest of the groups.
Conclusions: Bonding metal orthodontic brackets using 3D-printed holders produced sufficient bond strengths to meet clinical needs. Also, brackets bonded to thermoplastic trays did not show adequate strength when it tested, even with the use of two types of adhesive materials in the study.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Health Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Health Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Health Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.