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Table 7 Soft tissue healing outcomes in the evaluated studies

From: Efficacy of platelet-rich fibrin in promoting the healing of extraction sockets: a systematic review

Study

n

Test

Control

Method

Results test

Results control

Statistics

Sharma et al. [54]

30

PRF

Spontaneous healing

The Landry wound healing index (mean ± SD)

Day 3: 3.43 ± 0.504

Day 7: 3.93 ± 0.254

Day 14: 4.83 ± 0.379

Day 3: 3.17 ± 0.379

Day 7: 3.73 ± 0.082

Day 14: 4.3 ± 0.46

Day 3: yes

p = 0.025

Day 7: yes

P = 0.039

Day 14: yes

p = 0.00

Mourao et al. [56]

32

L-PRF

Spontaneous healing

Wound healing index (mean ± SD)

Week 1: 3.81 ± 0.65

Week 2: 4.75 ± 0.44

Week 1: 3.18 ± 0.54

Week 2: 4.5 ± 0.51

Week 1: Yes

p = 0.0138

Week 2: No

Srinivas et al. [48]

30

PRF

Spontaneous healing

Wound healing index after 7 days

3.8 ± 0.40

3.0 ± 0.53

Yes

P < 0.001

Ahmed et al. [53]

  

Spontaneous healing

Wound healing index

Very good 94.1%

Very good in 86.7%

Not reported

Ustaoglu et al. [42]

57

L-PRF

Spontaneous healing

The Landry wound healing index (mean ± SD)

Week 1: 3.58 ± 0.63

Week 2: 4.59 ± 0.51

Week 1: 3.21 ± 0.66

Week 2: 4.38 ± 0.49

Week 1: no

Week 2: no

   

Spontaneous healing

Complete wound epithelization (%)

Week 1: 54.9

Week 2: 100

Week 1: 10.1

Week 2: 40.7

Week 1: yes

P = 0.047

Week 2: yes

P = 0.041

  

T-PRF

Spontaneous healing

The Landry wound healing index (mean ± SD)

Week 1: 3.69 ± 0.51

Week 2: 4.71 ± 0.50

Week 1: 3.21 ± 0.66

Week 2: 4.38 ± 0.49

Week 1: no

Week 2: no

   

Spontaneous healing

Complete wound epithelization (%)

Week 1: 70.1

Week 2: 100

Week 1: 10.1

Week 2: 40.7

Week 1: yes

P = 0.047

Week 2: yes

P = 0.041

Giudice et al. [40]

40

A-PRF + 

Spontaneous healing

Wound healing index (mean)

Week 1: 1

Week 2: 0.25

Week 1: 1.05

Week 2: 0.33

No

  

L-PRF

Spontaneous healing

Wound healing index (mean)

Week 1: 0.95

Week 2: 0.15

Week 1: 1.05

Week 2: 0.33

No

Asmael et al. [58]

20

PRF

Spontaneous healing

Percentage of epithelization after 1 week

52.7%

51.3%

No

    

The Landry wound healing index (mean) after 1 week

3.45

4.2

Yes

P = 0.0035

15

Marenzi et al. [57]

 

L-PRF

Spontaneous healing

Wound healing index (mean ± SD)

Day 3: 4.8 ± 0.6

Day 7: 4.5 ± 0.5

Day 14: 4.2 ± 0.2

Day 21: 4.1 ± 0.1

Day 3: 5.1 ± 0.9

Day 7: 4.9 ± 0.3

Day 14: 4.3 ± 0.3

Day 21: 4.2 ± 0.2

Day 3: No p = 0.197

Day 7: yes p = 0.05

Day 14: yes p = 0.01

Day 21: yes p = 0.0002