Table 2 Lithium-disilicate discs’ CIELAB parameters values over the white (w) and black (b) backgrounds, the correspondent translucency parameters (TP) and light irradiance values with the ceramic discs’ interpositions
From: Does ceramic translucency affect the degree of conversion of luting agents?
Lithium-disilicate translucency | Optical properties | Light irradiance (Direct light irradiance = 1218 mW/cm2) in mW/cm2 (% of light maintenance) | |||
|---|---|---|---|---|---|
L* | a* | b* | TP | ||
High translucency (HT) | 94.0w | 0.7w | 14.8w | 16.4 | 810 (66%) |
78.8b | − 0.8b | 8.8b | |||
Low translucency (LT) | 89.7w | 1.3w | 22.6w | 13.4 | 692 (57%) |
79.2b | − 0.6b | 15.1b | |||
Medium opacity (MO) | 83.6w | 4.0w | 38.4w | 12.6 | 566 (46%) |
76.4b | 0.5b | 28.7b | |||