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

Table 5 Intragroup comparison of mean gingival index scores obtained by using injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using paired t test

i-PRF + CM in mo	mean ± SD	P value	CM in mo	mean ± SD	P value
0	0.625 ± 0.164	0.001a	0	0.625 ± 0.165	0.001a
1	0.89 ± 0.141		1	0.89 ± 0.18
0	0.625 ± 0.164	0.001a	0	0.625 ± 0.165	0.001a
3	0.545 ± 0.119		3	0.575 ± 0.155
0	0.625 ± 0.164	0.001a	0	0.625 ± 0.165	0.001a
6	0.51 ± 0.149		6	0.51 ± 0.137
1	0.89 ± 0.141	0.001a	1	0.89 ± 0.18	0.001a
3	0.545 ± 0.119		3	0.575 ± 0.155
1	0.89 ± 0.141	0.001a	1	0.89 ± 0.18	0.001a
6	0.51 ± 0.149		6	0.51 ± 0.137
3	0.545 ± 0.119	0.137	3	0.545 ± 0.155	0.137
6	0.51 ± 0.149		6	0.51 ± 0.137

^aP < 0.01 statistically significant.

Level of significance at P < 0.05. CM: Collagen membrane; i-PRF: Injectable platelet-rich fibrin.