Table 4.

Microhardness values of permanent teeth

Initial	Kefir	Curodont Protect	MI Paste Plus	Tooth Mousse	Artificial saliva	p value
334.76±34.91A	275.12±43.56 B,a	340.18±23.87A,a	315.54±78.44C,a	310.44±62.13C,a	287.30±37.01D,a	<0.05*
Initial	Gastric acid	Curodont Protect	MI Paste Plus	Tooth Mousse	Artificial saliva
334.76±34.91A	253.45±55.82 B,b	328.98±45.21A,a	320.66±62.49A,a	307.31±43.22C,a	267.19±38.72B,a	<0.05*
p value	<0.05*

Note:Different capital letters indicate significance horizontally, and different lower case letters indicate significance vertically