Effects of saliva on additive manufacturing materials for dentistry applications: Experimental research using flexural strength analysis

Authors

  • Tommaso Zara
  • Lorenzo Capponi University of Illinois at Urbana-Champaign
  • Francesca Masciotti Odontostomatological University Centre, Department of Medicine and Surgery, University of Perugia, Perugia
  • Stefano Pagano Odontostomatological University Centre, Department of Medicine and Surgery, University of Perugia, Perugia
  • Roberto Marsili Department of Engineering, University of Perugia, Via G. Duranti 93, 06122 Perugia
  • Gianluca Rossi Department of Engineering, University of Perugia, Via G. Duranti 93, 06122 Perugia

DOI:

https://doi.org/10.21014/actaimeko.v12i2.1519

Keywords:

additive manufacturing, dentistry, flexural strength, polymers, 3D printing

Abstract

Accurate and reliable results in orthodontics heavily depend on selecting the right impression materials. With the rise of digital technology and additive manufacturing techniques, it has become necessary to characterize experimentally the materials used to design prosthetic bases. In this study, the mechanical properties of Polyetheretherketone, Nylon6, Nylon12, and Polypropylene are analyzed, as impression materials commonly used in dentistry applications. Specifically, the effect on their flexural elastic modulus of the exposure to working environment conditions is also investigated by means of 3-point bending test performed on virgin materials and samples immersed in saliva for 72 hours. The proposed approach revealed significant behavior in terms of loss in mechanical performances. These findings have significant implications for the proper selection and use of AM materials in dental applications.

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Published

2023-05-31

Issue

Vol. 12 No. 2 (2023)

Section

Research Papers

License

Copyright (c) 2023 Tommaso Zara, Lorenzo Capponi, Francesca Masciotti, Stefano Pagano, Roberto Marsili, Gianluca Rossi

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