In vitro study compares color stability of CAD/CAM and 3D-printed resin, revealing key influences.
Key Points
This study compares the color stability of CAD/CAM nanohybrid composite and additively manufactured resin to evaluate the effects of surface treatment and layer thickness.
Performed in vitro comparison of two materials: CAD/CAM nanohybrid composite and ceramic-filled 3D-printing resin.
Created thirty specimens per material at two thicknesses (0.5 mm and 1.0 mm) under three surface conditions.
Conducted spectrophotometric measurements over 28 days to assess color changes due to coffee immersion.
The CAD/CAM nanohybrid composite exhibited superior color stability compared to the additively manufactured resin.
Surface treatment improved color stability across both materials, with more consistent results for the 3D-printed resin.
Specimens with reduced layer thickness (0.5 mm) displayed greater color change than those with increased thickness (1.0 mm).