Introduction. The objective of this case series report is color matching of
the central incisors all-ceramic crowns and determine the color difference
between those crowns and contralateral or neighboring intact natural incisor
using the DEab value from CIELab formula. Case report. The subject of this
color assessment was all-ceramic crowns for central incisors for three young
female patients. The intact natural incisors were used as the target shade
for the all-ceramic crown. After tooth preparation and IO scan everything
has been done at once, regarding the design of restoration and model. For
these cases Ivoclar ZirCAD PRIME multi A1 block has been used. For proper
shade mapping polarized picture with grey card for digital calibration is
necessary as well as one standard picture for mapping the color effects. For
tooth color mapping has been used the eLapp. Highest DEab value for all
three cases was 2.7 or less, which indicates that the color is clinically
acceptable, considering acceptability threshold value of less than 2.7
(three-year follow-up confirmed acceptable color appearance. Conclusion.
Following recommended protocol based on the eLsoftware, clinically
acceptable color of the all-ceramic crown were obtained.