Randomized Controlled Trial
Copyright ©The Author(s) 2022.
World J Exp Med. Jul 20, 2022; 12(4): 68-91
Published online Jul 20, 2022. doi: 10.5493/wjem.v12.i4.68
Table 1 Demographic characteristics and mean values of clinical parameters
Demographic characteristicsTest, mean ± SDControl, mean ± SD
Sex
Male7
Female6
Age36.7 ± 12.44
PI0.625 ± 0.1510.625 ± 0.154
GI 0.625 ± 0.1640.625 ± 0.65
PD1.75 ± 0.444 2.05 ± 0.6
RD2.7 ± 0.86 2.9 ± 0.71
RW3.5 ± 0.63.7 ± 0.73
RAL7.3 ± 0.8 7.05 ± 0.82
KTW1.6 ± 0.51.35 ± 0.48
KTT1.64 ± 0.2371.61 ± 0.201
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)Groupnmean ± SDP value
0i-PRF + CM200.6250.151741.000
CM200.6250.15174NS
1i-PRF + CM200.8650.134850.544
CM200.8350.17252NS
3i-PRF + CM200.60.133770.211
CM200.5450.13945NS
6i-PRF + CM200.540.127320.810
CM200.530.13416NS
Table 3 Intragroup comparison of mean plaque scores obtained by using injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals
i-PRF + CM in momean ± SDP valueCM in momean ± SDP value
00.625 ± 0.1510.001a00.625 ± 0.1540.001a
10.865 ± 0.13410.835 ± 0.172
00.625 ± 0.1510.20400.625 ± 0.1540.001a
30.6 ± 0.13330.545 ± 0.139
00.625 ± 0.1510.001a00.625 ± 0.1540.001a
60.54 ± 0.12760.53 ± 0.134
10.865 ± 0.1340.001a10.835 ± 0.1720.001a
30.6 ± 0.13330.545 ± 0.139
10.865 ± 0.1340.001a10.835 ± 0.1720.001a
60.54 ± 0.12760.56 ± 0.134
30.6 ± 0.1330.004a30.545 ± 0.1390.379
60.54 ± 0.12760.56 ± 0.134
Table 4 Intergroup comparison of mean gingival index scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using unpaired t test
moGroupnmean ± SDP value
0i-PRF + CM200.625 ± 0.165041.0
CM200.625 ± 0.16504NS
1i-PRF + CM200.89 ± 0.141051.0
CM200.89 ± 0.18035NS
3i-PRF + CM200.545 ± 0.11910.497
CM200.575 ± 0.15517NS
6i-PRF + CM200.515 ± 0.149650.913
CM200.51 ± 0.13727NS
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 momean ± SDP valueCM in momean ± SDP value
00.625 ± 0.1640.001a00.625 ± 0.1650.001a
10.89 ± 0.14110.89 ± 0.18
00.625 ± 0.1640.001a00.625 ± 0.1650.001a
30.545 ± 0.11930.575 ± 0.155
00.625 ± 0.1640.001a00.625 ± 0.1650.001a
60.51 ± 0.14960.51 ± 0.137
10.89 ± 0.1410.001a10.89 ± 0.180.001a
30.545 ± 0.11930.575 ± 0.155
10.89 ± 0.1410.001a10.89 ± 0.180.001a
60.51 ± 0.14960.51 ± 0.137
30.545 ± 0.1190.13730.545 ± 0.1550.137
60.51 ± 0.14960.51 ± 0.137
Table 6 Intergroup comparison of mean pocket depth scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using unpaired t test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM201.75 ± 0.444260.082
CM202.05 ± 0.60481NS
1i-PRF + CM202.65 ± 0.489360.492
CM202.8 ± 0.83351NS
3i-PRF + CM202.05 ± 0.223610.560
CM202.1 ± 0.30779NS
6i-PRF + CM201.75 ± 0.444260.080
CM201.95 ± 0.22361NS
Table 7 Intragroup comparison of mean pocket depth 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 momean ± SDP valueCM in momean ± SDP value
01.75 ± 0.4440.001a02.05 ± 0.60.001a
12.65 ± 0.48912.8 ± 0.83
01.775 ± 0.4440.01a02.05 ± 0.60.002a
32.05 ± 0.22332.1 ± 0.3
01.75 ± 0.4441.002.05 ± 0.60.08
61.75 ± 0.44461.95 ± 0.223
12.65 ± 0.4890.001a12.8 ± 0.830.748
32.05 ± 0.22332.1 ± 0.6
12.65 ± 0.4890.001a12.8 ± 0.830.428
61.75 ± 0.44461.95 ± 0.223
32.45 ± 0.2230.01a32.1 ± 0.30.001a
61.75 ± 0.44461.95 ± 0.223
Table 8 Intergroup comparison of mean recession depth scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using unpaired t test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM202.7 ± 0.8650.431
CM202.9 ± 0.718NS
1i-PRF + CM200.25 ± 0.4440.108
CM200.5 ± 0.513NS
3i-PRF + CM200.5 ± 0.5130.008a
CM200.95 ± 0.51
6i-PRF + CM200.9 ± 0.6410.04b
CM201.3 ± 0.571
Table 9 Intragroup comparison of mean recession depth 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 momean ± SDP valueCM in momean ± SDP value
02.7 ± 0.860.001a02.9 ± 0.710.001a
10.25 ± 0.410.5 ± 0.51
02.7 ± 0.860.001a02.9 ± 0.710.001a
30.5 ± 0.530.95 ± 0.51
02.7 ± 0.860.001a02.9 ± 0.710.001a
60.9 ± 0.6461.3 ± 0.57
10.25 ± 0.40.021b10.5 ± 0.510.001a
30.5 ± 0.530.95 ± 0.51
10.025 ± 0.40.001a10.5 ± 0.510.001a
60.9 ± 0.6461.3 ± 0.57
30.5 ± 0.50.002a30.95 ± 0.510.005a
60.9 ± 0.6461.3 ± 0.57
Table 10 Intergroup comparison of mean recession width scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using Mann-Whitney U test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM203.50.6070.400
CM203.70.733NS
1i-PRF + CM200.50.8890.107
CM2011.026NS
3i-PRF + CM2011.0260.080
CM201.850.875
6i-PRF + CM201.651.040.001a
CM202.550.759
Table 11 Intragroup comparison of mean recession width scores obtained by using injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using Wilcoxon signed rank test
i-PRF + CM in momean ± SDP valueCM in momean ± SDP value
03.5 ± 0.60.001a03.7 ± 0.730.001a
10.5 ± 0.811 ± 1.02
03.5 ± 0.60.001a03.7 ± 0.730.001a
31 ± 1.0231.85 ± 0.85
03.5 ± 0.60.001a03.7 ± 0.730.001a
61.65 ± 1.0362.55 ± 0.75
10.5 ± 0.80.025b11 ± 1.020.004a
31 ± 1.0231.85 ± 0.85
10.5 ± 0.80.001a11 ± 1.020.001a
61.65 ± 1.0362.55 ± 0.75
31 ± 1.020.009a31.85 ± 0.850.001a
61.65 ± 1.0362.55 ± 0.75
Table 12 Intergroup comparison of mean relative attachment level scores between injectable platelet-rich fibrin + collagen membrane at different time intervals using Mann-Whitney U test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM207.3 ± 0.8010.429
CM207.05 ± 0.826NS
1i-PRF + CM205.65 ± 1.3480.620
CM205.4 ± 0.94NS
3i-PRF + CM205.25 ± 1.2930.779
CM205.05 ± 0.945NS
6i-PRF + CM205.55 ± 1.0990.779
CM205.45 ± 0.826NS
Table 13 Intragroup comparison of relative attachment level scores obtained by using injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using Wilcoxon signed rank test
i-PRF + CM in momean ± SDP valueCM in momean ± SDP value
07.3 ± 0.80.001a07.05 ± 0.820.001a
15.6 ± 1.315.4 ± 0.94
07.3 ± 0.80.001a07.05 ± 0.820.001a
35.25 ± 1.2935.05 ± 0.94
07.3 ± 0.80.001a07.05 ± 0.820.001a
65.55 ± 1.0965.45 ± 0.82
15.6 ± 1.30.021b15.4 ± 0.940.124
35.25 ± 1.2935.05 ± 0.94
15.6 ± 1.30.58915.4 ± 0.940.868
65.55 ± 1.0665.45 ± 0.82
35.52 ± 1.290.0635.05 ± 0.940.021a
65.55 ± 1.0665.45 ± 0.82
Table 14 Intergroup comparison of width of keratinized tissue between injectable platelet-rich fibrin + collagen membrane at different time intervals using Mann-Whitney U test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM201.6 ± 0.5030.183
CM201.35 ± 0.489NS
1i-PRF + CM202.85 ± 0.4890.040b
CM202.45 ± 0.605
3i-PRF + CM203.5 ± 0.5130.004a
CM202.9 ± 0.447
6i-PRF + CM203.4 ± 0.5980.003a
CM202.75 ± 0.444
Table 15 Intragroup comparison of width of keratinized tissue scores obtained by using injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using Wilcoxon signed rank test
i-PRF + CM in momean ± SDP valueCM in momean ± SDP value
01.6 ± 0.50.001a01.35 ± 0.480.001a
12.85 ± 0.4812.45 ± 0.6
01.6 ± 0.50.001a01.35 ± 0.480.001a
33.5 ± 0.5132.9 ± 0.44
01.6 ± 0.50.001a01.35 ± 0.480.001a
63.4 ± 0.5962.75 ± 0.44
12.85 ± 0.480.001a12.45 ± 0.60.001a
33.5 ± 0.5132.9 ± 0.44
12.85 ± 0.480.001a12.45 ± 0.60.001a
63.4 ± 0.5962.75 ± 0.44
33.5 ± 0.510.001a32.9 ± 0.440.001a
63.4 ± 0.5962.75 ± 0.44
Table 16 Intergroup comparison of thickness of keratinized tissue scores between injectable platelet-rich fibrin + collagen membrane and collagen membrane at different time intervals using unpaired t test
Time (mo)Groupnmean ± SDP value
0i-PRF + CM201.65 ± 0.2380.685
CM201.62 ± 0.202NS
1i-PRF + CM202.69 ± 0.2330.001a
CM202.12 ± 0.193
3i-PRF + CM202.53 ± 0.2120.001a
CM202.02 ± 0.18
6i-PRF + CM202.46 ± 0.2520.001a
CM201.91 ± 0.166
Table 17 Intragroup comparison of thickness of keratinized tissue scores obtained by using injectable platelet-rich fibrin and collagen membrane at different time intervals using paired t test
i-PRF + CM in momean ± SDP valueCM in mo mean ± SDP value
01.64 ± 0.2370.001a01.61 ± 0.2010.001a
12.68 ± 0.23312.11 ± 0.193
01.64 ± 0.2370.001a01.61 ± 0.2010.001a
32.52 ± 0.21132.01 ± 0.179
01.64 ± 0.2370.001a01.61 ± 0.2010.001a
62.45 ± 0.25261.91 ± 0.166
12.68 ± 0.2330.001a12.11 ± 0.1930.001a
32.52 ± 0.21132.01 ± 0.179
12.68 ± 0.2330.001a12.11 ± 0.1930.001a
62.45 ± 0.25261.91 ± 0.166
32.52 ± 0.2110.001a32.01 ± 0.1790.001a
62.45 ± 0.25261.91 ± 0.166
Table 18 Overall percentage of root coverage in the 1st month, 3rd month and 6th month in patients treated with injectable platelet-rich fibrin + collagen membrane and collagen membrane respectively
GroupMonth 1Month 3Month 6
i-PRF + CM91.681.667
CM82.366.453.95