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3D-printed nails for aesthetic silicone prostheses.

Felix Austin Lee1, Michael El Leow2, Ching Chiuan Yen3

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3D printing offers a faster and more precise method for creating prosthetic nails compared to traditional techniques. While achieving excellent form and fit, 3D-printed nails currently lack the realistic color and texture of traditionally made prosthetics.

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Area of Science:

  • Biomedical Engineering
  • Prosthetics and Orthotics
  • Additive Manufacturing

Background:

  • Accurate reproduction of nails is essential for aesthetic silicone prostheses.
  • Traditional prosthetic nail production is time-consuming and prone to errors.
  • Additive manufacturing (3D printing) offers a potential solution to improve efficiency and precision.

Purpose of the Study:

  • To investigate the application of 3D printing for producing prosthetic nails.
  • To compare the quality and efficiency of 3D-printed nails with traditionally manufactured ones.
  • To identify the advantages and limitations of 3D printing in prosthetic nail fabrication.

Main Methods:

  • Utilized 3D scanning for reverse engineering patient hand geometry.
  • Employed CAD software for designing 3D nail models.
  • Used image processing for color sampling from 2D images.
  • Leveraged Stratasys inkjet 3D printing technology for nail production.

Main Results:

  • 3D printing produced nails comparable to traditional methods in size, shape, curvature, and thickness.
  • Improved consistency in thickness and better size/shape matching reduced rejects and finishing time.
  • Significant time savings were achieved in the prosthetic fabrication process.

Conclusions:

  • 3D printing demonstrates potential for efficient and accurate prosthetic nail production.
  • Current limitations include color matching, surface texture, and life-likeness compared to traditional methods.
  • Further research is needed to address material translucency and color reproduction challenges in 3D-printed prosthetic nails.