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March 14, 20260 citationsOpen Access

Electrochemical Testing of 3D Printed Orthodontic Metallic Bands

Ionic release and electrochemical testing of 3-D printed orthodontics metallic bands made of Co-Cr and stainless-steel alloys

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Authors

SZSPIROS ZINELISASAikaterini SakellariSKSotirios Karavoltsos

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Overview

Investigates ionic release and electrochemical properties of 3D printed metallic bands, indicating Co-Cr alloys may be more effective.

Key Points

  • The study aims to evaluate the ionic release and electrochemical characteristics of Co-Cr and stainless-steel orthodontic bands.
  • 3D printed 36 metallic orthodontic bands using SS and Co-Cr alloys.
  • Measured ionic release per ISO 27020:2019 using flame atomic absorption spectrometry.
  • Characterized electrochemical properties using Open Circuit Potential, Anodic Scan, and Electrochemical Impedance Spectroscopy.
  • Used 0.1M NaCl and 0.1M lactic acid solutions for testing.
  • Performed statistical comparison using t-tests and Mann-Whitney tests.
  • SS bands had an approximately 44-fold higher total ionic release compared to Co-Cr bands.
  • Both alloys showed no significant differences in corrosion potential, but Co-Cr had higher beneficial OCP, corrosion current density, and pitting corrosion potential values.
  • Electrochemical tests indicated lower charge transfer resistance for Co-Cr alloy, suggesting decreased corrosion rate.

Cite This Study

ZINELIS et al. (2025) studied this question.

synapsesocial.com/papers/69b4fb9db39f7826a300bf84https://doi.org/10.5167/uzh-292875
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