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Numerical modeling of shape-memory alloys in orthodontics

F. Auricchio1, L. Petrini2, R. Pietrabissa3, E. Sacco4
1 Corresponding author. (, Dipartimento di Meccanica Strutturale, Università di Pavia, Via Ferrata 1, 27100 Pavia, Italy.
2 Dipartimento di Meccanica Strutturale, Università di Pavia, Via Ferrata 1, 27100 Pavia, Italy.
3 Laboratorio di Meccanica delle Strutture Biologiche, Dipartimento di Bioingegneria, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy
4 Dipartimento di Meccanica, Strutture, A&T, Università di Cassino, Via Di Biasio 43, 03043 Cassino, Italy.

Computer Modeling in Engineering & Sciences 2003, 4(3&4), 365-380.


Since 80’s many devices were developed to exploit the unique blend of mechanical and biocompatibility properties of shape memory alloys in orthodontic applications. It results in a high clinical effectiveness, but also in a spreading of technical knowledge on the properties of the single appliances. The goal of the present contribution is to contrast this sense of bewilderness and to prepare the basis for a simulationtool able to support the orthodontist choice. In particular a finite-element beam with a one-dimensional constitutive law, able to describe the SMA super elasticity and shape memory effect, is presented: it is shown how computer modeling can be helpful in the understanding of the single appliance response as well as in the design of new more advanced, and possibly more effective, applications.


Shape memory alloys,orthodonticsapplication, numerical simulations.

Cite This Article

Auricchio, F., Petrini, L., Pietrabissa, R., Sacco, E. (2003). Numerical modeling of shape-memory alloys in orthodontics. CMES-Computer Modeling in Engineering & Sciences, 4(3&4), 365–380.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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