Georgian Scientists/ . 4 N 3, 2022 154 Georgian Scientists Vol. 4 Issue 4, 2022 https://doi.org/10.52340/gs.2022.04.04.17 pH- 1,4, 2, 1, 3,4, 4 , , , 1; , , 2; , , , 3; , , , 4 - pH- . : 15- 25 40 (17 23 ), . / pH- : , 24 . : 24 2 , pH - 2 . : , , pH, . , , , . , pH- , Georgian Scientists/ . 4 N 3, 2022 155 , , . (Leone, Oppenheim, 2001). (Edgar, Higham, 1995; Bardow et al., 2001). , . ; , (Richter et al., 2011; Zanarini et al., 2011). , - pH- . : 40 (15-25 ), . . : - 15-25 , - , , , . , . . ; , , . . , 24 2 . Georgian Scientists/ . 4 N 3, 2022 156 , . (Varma et al., 2008), ( - ) 9- 12 , . . , 5 . , , , 5 (Dawes, 1987). , - , . , „ “. : . . , . pH pH- . 0- 14 ( pH< 7, pH = 7, pH> 7). . pH- . , 24 t . t . . .1- . .1- , 72,5%- . Georgian Scientists/ . 4 N 3, 2022 157 1. . , . . Peros , 6-12 S. mutans- , (Peros et al., 2011). , 2 , . pH . , pH (pH = 5.5) (Cardoso et al., 2017; Makrygiannakis et al., 2018). . 2- , 24 pH , 2 (p<0.05), , . ( ) 16 - 25 ( / (n)) 17/23 29 6 12 I 14 II - I 8 II - II 12 III 6 11 4 4 Georgian Scientists/ . 4 N 3, 2022 158 2. pH- 24 2 T0 T1 T2 P pH 6.67+0,62 6,73+0,67 6,38 ± 0,18 T0-T1 p>0.05; T0-T2 p<0.05 4.23± 1.42 4.67 ± 1.35 4,56±1,52 T0-T1 p>0.05 T0-T2 p>0.05 T0 - , T1 - 24 , T2 - pH- . , (Chang et al., 1999; Lara- Carrillo et al., 2010; Peros et al., 2011; Alessandri Bonettiet al., 2013). Zogakis (2018) 6 pH- . Peros (2011) 6, 12 18 pH- . Bonetti- (2013) pH- . Al-Haifi- (2021) pH- , , . 6 12 pH , 2, 6 12 pH . 24 2 , ( . . 2), . (p>0.05). . Arab (2016) , 6, 12 18 . , , 2 pH- . (Lara-Carrillo et al., 2010). Georgian Scientists/ . 4 N 3, 2022 159 , , pH- (Bardow et al., 2001; Ulukapi et al., 1997; Lenander-Lumikari et al., 2000; Cheng et al., 2007) . , , pH (González-Aragón Pineda al., 2020; Pyati et al., 2018). , pH- . . : 1. Al-Haifi, H.A.A., Ishaq, R.A.A. & Al-Hammadi, M.S.A. 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