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Elastodontic Devices in Orthodontics: An In-Vitro Study on Mechanical Deformation under Loading
Vincenzo Quinzi1, Gianni Gallusi1, Elisabetta Carli2
1Department of Life, Health and Environmental Science, University of L'Aquila, 67100 L'Aquila, Italy.
Bioengineering (Basel, Switzerland)
|July 25, 2022
Summary
Elastodontic devices (ED) show minimal plastic deformation, generally under 1.75%, indicating clinical acceptability. The Ortho-Tain device exhibited the highest compression load and lowest deformation during mechanical testing.
Area of Science:
- Dentistry
- Biomaterials Science
- Orthodontics
Background:
- Elastodontic devices (ED) are used in orthodontic treatments.
- Evaluating the mechanical properties of ED is crucial for treatment efficacy and patient safety.
Purpose of the Study:
- To assess the mechanical resistance of various elastodontic devices (ED).
- To determine maximum compression loads and plastic deformation percentages under cyclic loading.
Main Methods:
- Mechanical testing using an Instron universal machine with a 100 N load cell.
- A five-cycles test was performed on multiple ED brands, including A.M.C.O.P., HealthyStart (Ortho-Tain), and T4K™ phase 1.
- Compression load and plastic deformation were analyzed using Bluehill software.
Main Results:
- The Ortho-Tain device demonstrated the highest compression load (7.56 N) with the lowest plastic deformation (0.95%).
- All tested ED exhibited slight plastic deformation, ranging from 0.95% to 1.75%, considered clinically acceptable.
- The T4K™ phase 1 device could not complete the five-cycles test.
Conclusions:
- Elastodontic devices generally possess acceptable mechanical resistance and minimal plastic deformation.
- The Ortho-Tain device shows superior mechanical performance compared to others tested.
- Further research is recommended to evaluate ED performance after clinical use.
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