Platelet rich fibrin is not a barrier membrane! Or is it?

Table 2 List of review articles on barrier membranes

Sr. No.	Ref.	Was PRF included in the list of barrier membranes?
1	Dimitriou et al[11], 2012	No
2	Rakhmatia et al[26], 2013	No
3	Soheilifar et al[27], 2014	No
4	Lee et al[6], 2014	No
5	Rodriguez et al[29], 2018	No
6	Caballé-Serrano et al[7], 2018	No
7	Omar et al[32], 2019	No
8	Higuchi et al[33], 2019	No
9	Caballé-Serrano et al[47], 2019	No
10	Aprile et al[42], 2020	Yes (only mentioned)
11	Sasaki et al[34], 2021	No
12	Ren et al[39], 2022	Yes (as a supportive bioactive molecule to other barrier membranes)
13	Yang et al[38], 2022	No
14	Alauddin et al[35], 2022	Yes (as a supportive membrane)
15	Solomon et al[46], 2022	Yes (for increasing the soft tissue thickness)

PRF: Platelet-rich fibrin.