Statement of the Problem: Matching adjacent anterior all-ceramic restorations supported by natural teeth and implants to adjacent natural teeth or all-ceramic restoration is a demanding task for both clinicians and dental technician, especially when cemented to natural teeth and/or implant-supported abutments with different stump shades.
Material and Methods:00
Results:. The reported 00 values ranged between . Majority of the groups showed 00 values higher than clinically acceptable level ( 00>2.25). Only one group of the combination of zirconia background and yellow cement showed means 00 values within the clinically acceptable level (1.3 < 00 ≤ 2.25).
Conclusion:clinically acceptable level.