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Journal of Prosthodontics News   May 4, 2021

Effects of Beverages and Surface Treatments on Color Stability of 3D‐printed Restorations

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Now online in the Journal of Prosthodontics, a report on the color stability of 3D-printed interim restorations with different surface treatments while immersed in various staining solutions or beverages.

A virtual all-ceramic full-coverage restoration was designed and 80 abutment teeth and interim restorations were 3D-printed with tooth-colored photopolymerizing resin. The restorations were randomly allocated into two different groups—Polish and Optiglaze. The 80 printed interim crowns were then divided into 4 different groups depending on immersion liquid: artificial saliva, coffee, wine, and tea.

The 3D-printed interim restorations showed significant discoloration after 6-months immersion. Red wine caused the most significant discoloration on the interim restorations. The authors conclude that when 3D-printed interim restorations are needed for extended intraoral service, nanofilled, light polymerizing protective coating can reduce the restoration discoloration caused by chromogenic beverages. The protective effect is most significant against coffee.

Almejrad L, Yang C‐C, Morton D, Lin W‐S: The effects of beverages and surface treatments on the color stability of 3d‐printed interim restorations. J Prosthodont 2021. Accepted Author Manuscript. https://doi.org/10.1111/jopr.13377

 

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