Publication
Tensile strength essay comparing three different platelet-rich fibrin membranes (L-PRF, A-PRF, and A-PRF plus): a mechanical and structural in vitro evaluation
| dc.contributor.author | Simões-Pedro, Mara | |
| dc.contributor.author | Tróia, Pedro Maria B. P. S. | |
| dc.contributor.author | Santos, Nuno Bernardo Malta dos | |
| dc.contributor.author | Completo, António M. G. | |
| dc.contributor.author | Castilho, Rogerio Moraes | |
| dc.contributor.author | Fernandes, Gustavo Vicentis de Oliveira | |
| dc.date.accessioned | 2022-04-22T16:54:12Z | |
| dc.date.available | 2022-04-22T16:54:12Z | |
| dc.date.issued | 2022-04 | |
| dc.description.abstract | Predictable outcomes intended by the application of PRF (platelet-rich fibrin) derivative membranes have created a lack of consideration for their consistency and functional integrity. This study aimed to compare the mechanical properties through tensile strength and analyze the structural organization among the membranes produced by L-PRF (leukocyte platelet-rich fibrin), A-PRF (advanced platelet-rich fibrin), and A-PRF+ (advanced platelet-rich fibrin plus) (original protocols) that varied in centrifugation speed and time. L-PRF (n = 12), A-PRF (n = 19), and A-PRF+ (n = 13) membranes were submitted to a traction test, evaluating the maximum and average traction. For maximum traction, 0.0020, 0.0022, and 0.0010 N·mm−2 were obtained for A-PRF, A-PRF+, and L-PRF, respectively; regarding the average resistance to traction, 0.0012, 0.0015, and 0.006 N·mm−2 were obtained, respectively (A-PRF+ > A-PRF > L-PRF). For all groups studied, significant results were found. In the surface morphology observations through SEM, the L-PRF matrix showed a highly compact surface with thick fibers present within interfibrous areas with the apparent destruction of red blood cells and leukocytes. The A-PRF protocol showed a dense matrix composed of thin and elongated fibers that seemed to follow a preferential and orientated direction in which the platelets were well-adhered. Porosity was also evident with a large diameter of the interfibrous spaces whereas A-PRF+ was the most porous platelet concentrate with the greatest fiber abundance and cell preservation. Thus, this study concluded that A-PRF+ produced membranes with significant and higher maximum traction results, indicating a better viscoelastic strength when stretched by two opposing forces. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.3390/polym14071392 | pt_PT |
| dc.identifier.eid | 85128263500 | |
| dc.identifier.issn | 2073-4360 | |
| dc.identifier.pmc | PMC9002533 | |
| dc.identifier.pmid | 35406263 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/37356 | |
| dc.identifier.wos | 000781467800001 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Platelet-rich fibrin | pt_PT |
| dc.subject | Tensile strength | pt_PT |
| dc.subject | Resistance | pt_PT |
| dc.subject | Rupture | pt_PT |
| dc.subject | Fibrin | pt_PT |
| dc.subject | Microscopic analysis | pt_PT |
| dc.subject | Centrifugation | pt_PT |
| dc.title | Tensile strength essay comparing three different platelet-rich fibrin membranes (L-PRF, A-PRF, and A-PRF plus): a mechanical and structural in vitro evaluation | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 7 | pt_PT |
| oaire.citation.title | Polymers | pt_PT |
| oaire.citation.volume | 14 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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