Color stability of fully-and pre-crystalized chair-side CAD-CAM lithium disilicate restorations after required and additional sintering processes
Document Type
Article
Publication Title
Journal of Advanced Prosthodontics
Abstract
PURPOSE. The aim of this study was to investigate shade changes in fullyand pre-crystalized CAD-CAM lithium disilicate crowns after the required and additional firing processes. MATERIALS AND METHODS. One hundred and five crowns of shade A1 with high translucency were milled out of CAD-CAM lithium disilicate blocks and categorized as follows (n = 15): (1) restorations fabricated from Strau-mann n!ce with no additional sintering process; (2) restorations fabricated from Straumann n!ce with one additional sintering process; (3) restorations fabricated from Straumann n!ce with two additional sintering processes; (4) restorations fabricated from Amber Mill with one sintering process; (5) restorations fabricated from Amber Mill with two sintering processes; (6) restorations fabricated from IPS e.max CAD with one sintering process; (7) restorations fabricated from IPS e.max CAD with two sintering processes. All restorations were evaluated with a color imaging spectrophotometer. RESULTS. All restorations presented some color alteration from the original shade both after a single and after two firing processes. CONCLUSION. The required and additional sintering processes for restorations fabricated with chairside CAD-CAM lithium disilicate blocks cause an alteration of the original shade selected. Shade A1 high translucency restorations tend to change to a more yellowish B1 shade after a sintering process. [J Adv Prosthodont 2022;14:56-62]
First Page
56
Last Page
62
DOI
10.4047/jap.2022.14.1.56
Publication Date
1-1-2022
Recommended Citation
Jurado, Carlos Alberto; El-Gendy, Tamer; Hyer, Jared; and Tsujimoto, Akimasa, "Color stability of fully-and pre-crystalized chair-side CAD-CAM lithium disilicate restorations after required and additional sintering processes" (2022). ASDOH Faculty Publications. 199.
https://scholarworks.atsu.edu/asdoh-faculty/199