Table 2.

Change in colour coordinates.

Testing Groups	Baseline			Water Sorption			Irradiation			Non-Irradiation
	L*	a*	b*	L*	a*	b*	L*	a*	b*	L*	a*	b*
BAPO	36.2	1.21	7.79	39.63	−3.6	7.65	33.75	−0.53	1.52	36.9	−2.42	5.48
TPO	31.75	−0.23	1.82	32.01	−0.41	0.49	33.76	−0.39	0.74	33.76	−0.35	0.64
TPO-L	31.96	−0.28	1.40	32.31	−0.38	0.48	32.07	−0.34	0.52	31.47	−0.29	0.55