Table 2.

The mean differences between the antimicrobial activities of experimental groups against A. naeslundii. G1 represents the triple antibiotic mixture, G2 is the I-PRF containing triple antibiotic mixture, and G3 means the antibiotic-free I-PRF scaffold.

Bacterial species	Group (I)		Group (J)	Mean differences (I–J) ± SD	p value
	Group number	Mean ± SD	Group number
A. naeslundii	G1	1.24 ± 0.115	G2	−1.27 ± 0.07	≤0.001∗
			G3	0.26 ± 0.07	0.004∗
	G2	2.51 ± 0.141	G1	1.27 ± 0.07	≤0.001∗
			G3	1.53 ± 0.07	≤0.001∗
	G3	0.98 ± 0.171	G1	−0.26 ± 0.07	0.004∗
			G2	1.53 ± 0.07	≤0.001∗
Total	1.575 ± 0.6969				≤0.001∗

SD: standard deviation. ^∗Significant difference (p value < 0.05).