. 2020 Apr 30;11:774. doi: 10.3389/fmicb.2020.00774

TABLE 2.

Effect of different treatments on the development of dental caries in rats (Keyes score).

Treatment	Smooth-surface caries	Sulcal-surface caries	Sulcal-surface severity (mean ± SD)
			Ds^a	Dm^b	Dx^c
Control^d	55.4 ± 3.7^Af	30.0 ± 3.6^A	21.0 ± 2.5^A	11.1 ± 3.4^A	ND^e
Chlorhexidine acetate (0.02%)	45.9 ± 3.4^B	22.3 ± 2.3^B	11.7 ± 2.4^B	5.0 ± 2.6^B	ND
K41	44.4 ± 4.6^B	21.4 ± 4.1^B	11.7 ± 3.5^B	5.0 ± 1.3^B	ND

^aDs: dentin exposed. ^bDm: 3/4 of the dentin affected. ^cDx: whole dentin affected. ^dControl: deMan-Rogosa-Sharpe media. ^eND: not detectable. ^fValues followed by the same capital letter are not significantly different from each other.