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 simulation tool able to support the orthodontist choice. In particular a finite-element beam with a one-dimensional constitutive law, able to describe the SMA superelasticity 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.
Numerical modeling of shape-memory alloys in orthodontics
AURICCHIO, FERDINANDO;PIETRABISSA, ANDREA;
2003-01-01
Abstract
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 simulation tool able to support the orthodontist choice. In particular a finite-element beam with a one-dimensional constitutive law, able to describe the SMA superelasticity 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
