Evaluation of the Shear Bond Strength of Three Types of Retainer Wires Bonded with a Composite Adhesive: An in vitro Study
Background and Objectives: Posttreatment tooth movement, or relapse, is a common challenge in orthodontics. Bonded retainers are widely used to preserve corrected tooth positions. This study evaluates the mechanical properties of different lingual retainer wires combined with composite bonding mater...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2025-06-01
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| Series: | Journal of Pharmacy and Bioallied Sciences |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/jpbs.jpbs_51_25 |
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| Summary: | Background and Objectives:
Posttreatment tooth movement, or relapse, is a common challenge in orthodontics. Bonded retainers are widely used to preserve corrected tooth positions. This study evaluates the mechanical properties of different lingual retainer wires combined with composite bonding materials.
Materials and Method:
Ninety human incisors were divided into three groups, each using different retainer wires: Retainium, Bond-A-Braid, and Custom-Made Ligature wires, bonded with Transbond LR composite. Shear bond strength (SBS), flexural properties, and load–deflection rates (LDR) were analyzed through a universal testing machine (UTM) debonding, tensile tests, and three-point bend tests. Statistical comparisons were made using Kruskal–Wallis and ANOVA tests.
Results:
Group III showed the highest SBS, while Custom-Made Ligature wires exhibited superior stiffness and LDR.
Conclusion:
Custom-Made Ligature wires offer better mechanical properties, and Group III demonstrated the strongest bond strength, highlighting the importance of material selection in orthodontic retention. |
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| ISSN: | 0976-4879 0975-7406 |