Understanding the Shape-Memory Alloys Used in Orthodontics
2011
Understanding Shape-Memory Alloys in Orthodontics
publication
Evidence: moderate
Author Information
Author(s): Daniel J. Fernandes, Rafael V. Peres, Alvaro M. Mendes, Carlos N. Elias
Primary Institution: State University of Rio de Janeiro
Hypothesis
The paper aims to analyze the physical, metallurgical, and mechanical properties of NiTi used in Orthodontics to understand its shape memory properties and super-elasticity.
Conclusion
Nickel-titanium shape-memory alloys exhibit unique properties that make them advantageous for orthodontic applications.
Supporting Evidence
- NiTi alloys have greater strength and lower modulus of elasticity compared to stainless steel.
- The pseudoelastic behavior allows NiTi wires to return to their original shape after unloading.
- Shape-memory alloys can remember their original shape after being deformed by temperature changes.
Takeaway
Nickel-titanium wires can change shape when heated or stressed, which helps in moving teeth in orthodontics.
Methodology
The paper reviews the physical, metallurgical, and mechanical properties of NiTi alloys and discusses their behavior under different conditions.
Digital Object Identifier (DOI)
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