Mechanical Properties of a New 3D-Printing Resin
Author Information
Author(s): Ling Long, Theresa Lai, Raj Malyala
Primary Institution: Glidewell Dental, Irvine, CA, USA
Hypothesis
The new 3D-printing model resin material has favorable mechanical properties and degree of conversion, which are higher or comparable to the most used commercially available 3D-printing model resin materials.
Conclusion
The experimental model resin exhibited higher or similar values for mechanical properties and degree of conversion compared to most commercially available 3D-printing model resin materials.
Supporting Evidence
- The experimental resin showed a significantly higher flexural strength than most model resins.
- The experimental resin exhibited a significantly higher degree of conversion than DentaModel, Next Dent 2, Die and Model 2, DMR III, and Grey Resin.
- The elongation at break of the experimental resin is similar to that of most resins.
- The experimental resin has statistically higher Barcol hardness than DentaModel, KeyModel Ultra, DMR III, and Grey Resin.
- The impact strength of the experimental resin is statistically the same as that of most resins.
Takeaway
A new type of resin for 3D printing in dentistry is strong and works just as well as or better than other popular resins.
Methodology
The study involved printing and testing various mechanical properties of a new resin and comparing it with eight commercially available resins using standardized tests.
Limitations
The study did not include polymerization shrinkage and dimensional accuracy which also affects the accuracy of 3D-printed models.
Statistical Information
P-Value
p < 0.001
Statistical Significance
p ≤ 0.05
Digital Object Identifier (DOI)
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