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Advances on Mechanics, Design Engineering and Manufacturing pp 405–414Cite as

Computer Aided Engineering of Auxiliary Elements for Enhanced Orthodontic Appliances

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Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

Orthodontic treatments based on removable thermoplastic aligners are becoming quite common in clinical practice. However, there is no technical literature explaining how the loads are transferred from the thermoformed aligner to the patient dentition. Moreover, the role of auxiliary elements used in combination with the aligner, such as attachments and divots, still needs to be thoroughly explained. This paper is focused on the development of a Finite Element (FE) model to be used in the design process of shape attributes of orthodontic aligners. Geometrical models of a maxillary dental arch, including crown and root shapes, were created by combining optical scanning and Cone Beam Computed Tomography (CBCT). Finite Element Analysis (FEA) was used to compare five different aligner’s configurations for the same tooth orthodontic tipping movement (rotation around the tooth’s center of resistance). The different scenarios were analyzed by comparing the moment along the mesio-distal direction of the tooth and the resulting moment-to-force ratio (M:F) delivered to the tooth on the plane of interest. Results evidenced the influence of the aligner’s configuration on the effectiveness of the planned orthodontic movement.

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Author information

Authors and Affiliations

  1. Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy

    Roberto SAVIGNANO, Sandro BARONE, Alessandro PAOLI & Armando Viviano RAZIONALE

Authors
  1. Roberto SAVIGNANO
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  2. Sandro BARONE
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  3. Alessandro PAOLI
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  4. Armando Viviano RAZIONALE
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Corresponding author

Correspondence to Roberto SAVIGNANO .

Editor information

Editors and Affiliations

  1. Université de Technologie de Compiègne , Compiègne, France

    Benoit Eynard

  2. Dip di Ingegneria Chimica, Gest,Info,Mec, Università degli Studi di Palermo Dip di Ingegneria Chimica, Gest,Info,Mec, Palermo, Italy

    Vincenzo Nigrelli

  3. Dip di Ing, Elet, e Elet, Inform (DIEEI), Università degli Studi di Catania Dip di Ing, Elet, e Elet, Inform (DIEEI), Catania, Italy

    Salvatore Massimo Oliveri

  4. Camino De Vera S/N, Universidad Politecnica de Valencia Camino De Vera S/N, Valencia, Spain

    Guillermo Peris-Fajarnes

  5. Dept of Mechanical Energy and Management, University of Calabria Dept of Mechanical Energy and Management, Rende (Cosenza), Italy

    Sergio Rizzuti

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© 2017 Springer International Publishing AG

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SAVIGNANO, R., BARONE, S., PAOLI, A., RAZIONALE, A.V. (2017). Computer Aided Engineering of Auxiliary Elements for Enhanced Orthodontic Appliances. In: Eynard, B., Nigrelli, V., Oliveri, S., Peris-Fajarnes, G., Rizzuti, S. (eds) Advances on Mechanics, Design Engineering and Manufacturing . Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-45781-9_41

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  • DOI: https://doi.org/10.1007/978-3-319-45781-9_41

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-45780-2

  • Online ISBN: 978-3-319-45781-9

  • eBook Packages: EngineeringEngineering (R0)

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