Comparative evaluation of effect of injectable platelet-rich fibrin with collagen membrane compared with collagen membrane alone for gingival recession coverage

Table 2 Intergroup comparison of mean plaque scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using unpaired t test

Time (mo)	Group	n	mean ± SD		P value
0	i-PRF + CM	20	0.625	0.15174	1.000
	CM	20	0.625	0.15174	NS
1	i-PRF + CM	20	0.865	0.13485	0.544
	CM	20	0.835	0.17252	NS
3	i-PRF + CM	20	0.6	0.13377	0.211
	CM	20	0.545	0.13945	NS
6	i-PRF + CM	20	0.54	0.12732	0.810
	CM	20	0.53	0.13416	NS

Level of significance at P < 0.05. CM: Collagen membrane; i-PRF: Injectable platelet-rich fibrin; NS: Not significant using unpaired t test.