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<p>For efficient 3D printing, fast printing (thick print layers) is necessary; however, in ceramic 3D printing, which involves printing heavy materials, changes in print speed can significantly affect precision. This study compares and analyzes the marginal fit of zirconia crowns produced with different layer thicknesses using a top-down additive manufacturing process. The results for a layer thickness of 50&#xa0;μm showed lower fit in areas opposite the support compared to the results for layer thicknesses of 10 and 25&#xa0;μm. It is believed that during very fast printing, the load applied during printing cannot be sustained. These findings can be used as important information for future printing of zirconia prostheses.</p>

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Effect of Layer Thickness on Marginal Gap of Zirconia Crowns Manufactured Using Additive Manufacturing with Top-Down Approach

  • 期刊论文

  • 发表日期：

    2025年2月19日

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  • Sang-Kyu Lee,
  • Chan Park,
  • Kwang-Ho Jo,
  • Sang-Hyun Choi,
  • Hyein Lee,
  • Kyoung-Jun Jang,
  • Taekyung Yu

摘要

For efficient 3D printing, fast printing (thick print layers) is necessary; however, in ceramic 3D printing, which involves printing heavy materials, changes in print speed can significantly affect precision. This study compares and analyzes the marginal fit of zirconia crowns produced with different layer thicknesses using a top-down additive manufacturing process. The results for a layer thickness of 50 μm showed lower fit in areas opposite the support compared to the results for layer thicknesses of 10 and 25 μm. It is believed that during very fast printing, the load applied during printing cannot be sustained. These findings can be used as important information for future printing of zirconia prostheses.