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Application of 3D-printed colored 3D-models for the fabrication of full ceramic restorations: A technical report.

OBJECTIVE
This paper presents a novel digital workflow that expedites and facilitates the manufacturing of high-end full-ceramic restorations based on "Print and Press"-Technology combined with 3D-printed colored 3D-models.


CLINICAL CONSIDERATIONS
Despite ongoing innovations and developments in the digital workflow, the precision, and the final esthetic outcome is still limited compared with conventional press ceramics. The proposed method combines the advantages of digital scan- and design technologies with the proven conventional press-technology to accomplish high-end full-ceramic restorations. The restoration is digitally designed, the data set is 3D-printed in resin that can be burned out, subsequently conventionally embedded and pressed. Final esthetic finishing of the partial restorations is done on a 3D-printed physical colored 3D-model.


CONCLUSION
The report describes synergetic effects of digital and analog procedures. 3D-printed colored 3D-models can positively support the manufacturing of full ceramic restorations regarding their optical integration. Therefore, the use of 3D-printed colored 3D-models signifies a new innovative technique with many promising application areas.


CLINICAL SIGNIFICANCE
The combination of excellent clinical long-term data for pressed ceramic restorations and proven digital processes, like intraoral scanning, design, and additive manufacturing, in the dental field promise an individual workflow for predictability and excellent esthetics.