Table 1.

Composition of the four different artificial saliva replacement solutions.

Sal1 [52]	Sal2 [40,53]	Sal3 [54]	Sal4 [51]
19 mg/L MgCl2 6H20 2240 mg/L KCl 103 mg/L CaCl2 544 mg/L KH2PO2	400 mg/L NaCl 400 mg/L KCl 795 mg/L CaCl2 2H2O 690 mg/L NaH2PO2 H2O 5 mg/L Na2S 9H2O 1000 mg/L Urea (CH4N2O)	4200 mg/L NaHCO3 500 mg/L NaCl 200 mg/L KCl	1 g meat extract 2 g yeast extract 5 g proteose peptone 0.2 g NaCl 0.2 g KCl 0.3 g CaCl2 1.25 mL Urea 40% sterile filtered 1000 mL aqua dem.