Surface roughness and color stability of 3D printed temporary crown material in different oral media (In vitro study)

Aim: To evaluate the effect of different oral media (artificial saliva, carbonated orange juice and coffee) on surface roughness color stability 3D printed temporary material. Methodology: Twenty one discs samples were designed using additive manufacturing technique (SLA) divided into 3 groups stored in artificial coffee at 37 ℃. Surface was measured before after immersion non-contact USB Digital microscope. Color measurements made immersions CIE L*a*b*. Data analyzed by ANOVA followed Tukey’s pair-wise tests. Results: After two, three twelve weeks period there statistically significant difference between tested regarding roughness. The highest ΔE values observed (3.58, 4.40 10.35 ΔE) Carbonated mean (3.29, 3.84 7.18 while lowest changes for A. Saliva immersed group (1.91, 2.29 2.98 respectively. Conclusions: 1. All (except A.saliva) used present study affected Interim constructed 3-D printing technique. 2. Manufacturing interim crowns could be short-term provisional restoration. 3. This has shown a strong positive correlation change restorative