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ZeroExpander: Metal-free automatic palatal expansion for special-needs patients.

M Beretta1, F Federici Canova2, A Gianolio3

  • 1DDS, MS Ortho, MS Digital Dentistry, Private Practice in Varese, Italy.

European Journal of Paediatric Dentistry
|July 9, 2021
PubMed
Summary

This study introduces the ZeroExpander, a new metal-free device for automatic maxillary expansion in children. It offers a comfortable and effective solution for palatal transverse deficiency, especially for special-needs patients requiring MRI scans.

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Area of Science:

  • Orthodontics
  • Biomaterials Engineering
  • Paediatric Dentistry

Background:

  • Maxillary expansion is crucial for treating palatal transverse deficiency in children.
  • Traditional appliances may pose challenges for special-needs patients, particularly those requiring Magnetic Resonance Imaging (MRI).
  • Metal-free alternatives are sought for enhanced biocompatibility and patient comfort.

Purpose of the Study:

  • To introduce and evaluate the ZeroExpander, a novel, metal-free, automatic, fixed appliance for maxillary expansion in paediatric patients.
  • To demonstrate the efficacy of this system in patients with narrow upper arches, including those with special needs.
  • To present the application of PEEK and PA12 materials in this innovative device.

Main Methods:

  • The ZeroExpander, a Computer-Aided Design/Computer-Aided Manufacturing (CAD-CAT) digital device, was designed for automatic, pre-programmed maxillary expansion.
  • The appliance utilizes deciduous teeth for anchorage.
  • Two case reports are presented: one in complete deciduous dentition and another in mixed dentition, showcasing the use of PEEK and PA12 materials, respectively.

Main Results:

  • Successful palatal expansion was achieved in both presented paediatric cases.
  • The metal-free appliance demonstrated comfort and efficiency in treating palatal transverse deficiency.
  • The system eliminated the need for patient compliance.

Conclusions:

  • The ZeroExpander, constructed from metal-free technopolymers and anchored to deciduous teeth, is a comfortable and efficient solution for palatal transverse deficiency.
  • This innovative appliance is suitable for young patients, including those who require periodic MRI scans, due to its metal-free composition.
  • The system offers a viable alternative to traditional orthodontic expansion methods for special-needs children.