Evidence map›Paper›PMID 33829349›Full record

SynthesisClinical oral investigations2021

Is the use of platelet-rich fibrin effective in the healing, control of pain, and postoperative bleeding in the palatal area after free gingival graft harvesting? A systematic review of randomized clinical studies.

Jonathan Meza-Mauricio, Camila Pinheiro Furquim, Antonella Geldres, Gerardo Mendoza-Azpur, Belen Retamal-Valdes, Vittorio Moraschini, Marcelo Faveri

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Clinical oral investigations, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  16. PRF and PRP in Dentistry: An Umbrella Review.Journal of clinical medicine · 2025
    Review
  17. Article
  18. Article
  19. Biomaterials strategy for promoting palatal wound healing.Frontiers in bioengineering and biotechnology · 2025
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Jonathan Meza-MauricioDepartment of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, SP, Guarulhos, Brazil. jomemau60@gmail.com.ORCID http://orcid.org/0000-0002-4878-9835
Camila Pinheiro FurquimDepartment of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, SP, Guarulhos, Brazil.
Antonella GeldresDepartment of Periodontology, School of Dentistry, Universidad Cientifica del Sur, Lima, Peru.
Gerardo Mendoza-AzpurDepartment of Periodontology, School of Dentistry, Universidad Cientifica del Sur, Lima, Peru.
Belen Retamal-ValdesDepartment of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, SP, Guarulhos, Brazil.
Vittorio MoraschiniDepartment of Periodontology, Dental Research Division, School of Dentistry, Veiga de Almeida University, Rua Ibiturana, 108, Maracanã, Rio de Janeiro, Brazil.
Marcelo FaveriDepartment of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, SP, Guarulhos, Brazil.
Guarulhos University · BRUniversidad Científica del Sur · PEUniversidade Veiga de Almeida · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA systematic review (SR) was conducted to answer the following focused question based on PICO strategy: In patients who were submitted to harvesting palatal free gingival graft, could platelet-rich fibrin (PRF) application in comparison with another method improve the healing, pain, and control of postoperative bleeding in the palatal area in randomized clinical trials?

methodsA SR was conducted according to the PRISMA guidelines. The MEDLINE (PubMed), Scopus, Embase, and Web of Science databases were searched, and hand searches were made, covering the period up to August 2020, for randomized clinical trials (RCTs) reporting the effect of PRF membrane in postoperative palatal healing management compared with any other methods. The risk of bias (RoB) of the studies included was assessed by using the RoB 2 tool.

resultsThe electronic search strategy identified 150 articles. After title screening and abstract reading, 141 studies were excluded, and 9 full-text publications were comprehensively evaluated. Finally, 8 articles were included in the systematic review. Six studies showed that the PRF membrane was effective in improving wound healing during the first 2 weeks. As regards patient-centered outcomes, five studies showed that PRF promoted less postoperative pain. Finally, five studies that evaluated bleeding showed that the PRF membrane improved control of postoperative bleeding. RoB was classified as low in 4 studies, 3 with some concerns, and only one study did not describe the outcome data, and as this was missing, it was not possible to verify the protocol of data analysis for this study; therefore, it was classified as having high RoB.

conclusionWithin the limitations of this study, the collective evidence emerging from this SR may support the use of PRF membrane in the palatal area after free gingival graft harvesting. The results of this review must be interpreted with caution, due to the low number of RCTs included and high degree of heterogeneity among the PRF protocols. Further well-designed RCTs with accurate protocol and standard PRF parameters are required in order to gain clear understanding of the influence of PRF on wound healing and patient-centered outcomes. CLINICAL RELEVANCE: The use of PRF membrane for the protection of the palatal donor site following free gingival graft harvesting procedures improves wound healing and patients' quality of life.

Indexed as

Platelet-Rich FibrinHumansPalatePostoperative HemorrhagePostoperative PainWound HealingPainPlatelet-rich fibrin, Free gingival graftSystematic reviewWound healing

Identifiers

PMID33829349
OpenAlexW3152304217

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.