A Comparison of Internal, Marginal, and Incisal Gaps in Zirconia Laminates Fabricated Using Subtractive Manufacturing and 3D Printing Methods
2024

Comparing Gaps in Zirconia Laminates Made by Different Methods

Sample size: 20 publication Evidence: moderate

Author Information

Author(s): Noh Mijun, Kim Jaehong, Nurrohman Hamid

Primary Institution: Korea University

Hypothesis

There is no difference between the fit of zirconia laminates produced by the DLP printing and milling methods.

Conclusion

DLP printing can produce zirconia laminates with gaps that are clinically acceptable and comparable to those made by traditional milling methods.

Supporting Evidence

  • The LSM group had wider gaps than the LAM group except at point E.
  • No significant differences were observed between the LSM and LAM groups at any of the labiolingual measurement points.
  • A significant difference was observed between the two groups at point G in the mesiodistal plane.

Takeaway

This study looked at how well zirconia laminates fit when made with two different methods, and found that both methods can make good-fitting laminates.

Methodology

The study compared zirconia laminates made by subtractive manufacturing and DLP printing, measuring gaps using the silicone replica method.

Limitations

The study was in vitro and may not fully represent clinical conditions.

Statistical Information

P-Value

0.004

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/biomimetics9120728

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