Table 2.

Colour variation of group II (1 mm) samples after multiple firings

Firings	L*	a*	b*	∆E
2	72.78	1.56	12.74	17.23
3	73.13	1.4	12.49	16.89
4	72.82	1.15	12.66	17.1
6	72.85	1.53	12.69	17.55
8	72.83	1.76	12.78	17.86
10	73.98	1.28	12.73	17.69