3D-print settings and mechanical properties of dental products

English technical abstract

The article points out that 3D printing in a dental laboratory is not simply a matter of pressing a button. Object orientation, nesting*, layer thickness, post-curing*, resin and printer calibration all affect the result. These parameters can alter both dimensional fidelity and the mechanical properties of the finished product.

For IPD digital analogs, the key link is to models with accurately printed analog receptacles. If the printer or resin introduces a systematic deviation, calibration, Validation Master* and optimised library parameters may be required.

3D printingpost-curingnestinglayeringtrueness*

What the article covers and how to read it

TruenessDimensional fidelity is assessed by comparing the printed object with the original digital design.

Post-curingAn optimised curing protocol can improve stability of properties, whereas an unsuitable protocol may increase deviations or internal stresses.

Nesting and orientationThe object’s position on the build platform and its layer orientation affect surface quality, accuracy and mechanical behaviour.

Model calibrationFor implant models, it is essential to verify that the digital analog seats accurately, stably and without forced stress.

Relevance for the laboratory, dental practice and technical support

When changing resin, printer or print settings, the model used for digital analogs should be revalidated.
A deviation in the model may become apparent only when restoration seating is checked, so it is better to detect it through calibration than to correct it at the end of the workflow.
The article supports the IPD digital-analog page and explains why Validation Master and library offset are practically important.

Limitations and cautious interpretation

Specific numerical results depend on the materials, printers and parameters tested. The page therefore translates the article into general principles for verifying and calibrating 3D printing.

Original source article

Original title: Impact of 3D Printing Configurations on the Physical and Mechanical Properties of Dental Products

Download the original PDF

The source document remains available so readers can verify the original wording, methodology and results.

PDF

Related IPD pages and workflows

Glossary of abbreviations and specialist terms

An asterisk next to a term in the text refers to its explanation below.

Validation Master: Validation Master is a verification STL or calibration object used to check 3D-printing accuracy and analog seating.
post-curing: Post-curing is the additional curing of a printed resin object after 3D printing.
trueness: Trueness describes how close a measurement result is to the true reference value.
nesting: Nesting is the arrangement of objects on the printing platform or within the manufacturing space.