Table 2.

Comparison of ΔE score on days 7 and 30 after exposure to artificial saliva, cola, tea and orange juice

Sample	Day	Printer	Mean	SD	P- value
Artificial saliva	7	Detax	1	0/22	0/088
		Asiga	1/15	0/23
	30	Detax	1/24	0/27	0/38
		Asiga	1/35	0/25
Cola	7	Detax	1/55	0/55	0/06
		Asiga	1/15	0/24
	30	Detax	2/42	0/83	0/22
		Asiga	2/07	0/32
Tea	7	Detax	1/66	0/6	0/52
		Asiga	1/5	0/51
	30	Detax	2/98	0/91	0/035
		Asiga	2/14	0/71
Orange juice	7	Detax	2	0/53	0/08
		Asiga	1/56	0/54
	30	Detax	3/41	0/51	0/033
		Asiga	2/62	0/96