The Clinical and Biological Effects of Leucocyte and Platelet-rich Fibrin (L-PRF) on Post-extraction Sockets Healing

Tooth Extraction Clinical Trial

Official title:

The Clinical and Biological Effects of Leucocyte and Platelet-rich Fibrin (L-PRF) on Post-extraction Sockets Healing: a Randomized Controlled Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03985033
• Other study ID #: HKUPhD20190528
• Status: Completed
• Phase: N/A
• Start date: October 1, 2019
• Est. completion date: December 31, 2021

Study information

• Verified date: January 2022
• Source: The European Research Group on Periodontology (ERGOPerio)
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study evaluates the clinical and biological effects of leucocyte and platelet-rich fibrin (L-PRF) on post-extraction sockets healing.

Description:

Tooth extraction is one of the most frequent dental surgical procedures. Following tooth extraction, dimensional changes of the alveolus are inevitable, which consequently decrease the height and width of alveolar bone and impair ideal implant placement and conventional prosthetic treatment. In order to reduce the bone resorption after tooth extraction, the use of platelet concentrates has been proposed. Platelet rich fibrin (PRF) is a second generation of platelet concentrates consisting of platelets, leukocyte and growth factors harvested from blood. PRF not only supports hemostasis but also favors the natural wound healing process. Over the past decade, PRF has gained tremendous momentum having been utilized for a variety of dental and medical procedures including the management of post-extraction sockets. To date, several studies have assessed the efficacy of the use of PRF in promoting postextraction sockets healing. However, results remain contradictory and mainly focus on the clinical and radiological hard and soft tissue healing, aesthetics and postoperative discomfort. The mechanistic hypothesis is that growth factors released by PRF preparations modulate the wound healing process but the effect of local PRF application on the kinetics of release of wound healing modulators has not been studied so far. There is also a lack of information in the literature regarding the biological evaluation during postextraction sockets healing to understand the potential mechanisms. In order to assess the presence or follow dynamics of biomarkers, in this study wound fluid (WF) will be collected from the post-extraction sockets and utilized for multiplex immunoassay. Multiplex immunoassay allows simultaneous quantification of multiple markers providing unique information for a more complete understanding of the potential mechanism of PRF and spontaneous extraction socket healing. Therefore, the aim of this randomized clinical trial is to evaluate the effects of PRF on biomarkers response during post-extraction sockets healing.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 18
• Est. completion date: December 31, 2021
• Est. primary completion date: December 31, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 70 Years

Eligibility

Inclusion Criteria:

• Participant is willing and able to give informed consent for participation in the study

• Healthy males and females of age 18-70

• Need for two or more extractions of single rooted teeth in the presence of adjacent teeth or implants due to unrestorable caries, residual roots, root fractures or orthodontic treatment

• Able (in the investigators opinion) and willing to comply with all study requirements

• Interested in tooth replacement with dental implants

Exclusion Criteria:

• Endodontic periapical lesions with a diameter of more than 5 mm (radiographically determined)

• Sites with buccal and lingual bone plate loss more than 5 mm

• Frank purulence or acute abscess at the time of extraction

• Pregnancy or lactation

• Smokers or alcoholics

• Platelet dysfunction syndrome or thrombocytopenia

• Uncontrolled diabetes

• Medical contraindications to elective oral surgery procedures

Related Conditions & MeSH terms

• Tooth Extraction

Intervention

Other:
• leucocyte and platelet-rich fibrin (L-PRF)
The blood collected from each patient will be centrifuged immediately at 2700 rpm for 12 min to separate L-PRF.

Locations

Country	Name	City	State
Hong Kong	Faculty of Dentistry, The University of Hong Kong	Hong Kong

Sponsors (2)

Lead Sponsor	Collaborator
The European Research Group on Periodontology (ERGOPerio)	The University of Hong Kong

Country where clinical trial is conducted

Hong Kong, 

References & Publications (23)

Alssum L, Eubank TD, Roy S, Erdal BS, Yildiz VO, Tatakis DN, Leblebicioglu B. Gingival Perfusion and Tissue Biomarkers During Early Healing of Postextraction Regenerative Procedures: A Prospective Case Series. J Periodontol. 2017 Nov;88(11):1163-1172. doi: 10.1902/jop.2017.170117. Epub 2017 Jun 23. — View Citation

Araújo MG, Silva CO, Misawa M, Sukekava F. Alveolar socket healing: what can we learn? Periodontol 2000. 2015 Jun;68(1):122-34. doi: 10.1111/prd.12082. Review. — View Citation

Avila-Ortiz G, Chambrone L, Vignoletti F. Effect of alveolar ridge preservation interventions following tooth extraction: A systematic review and meta-analysis. J Clin Periodontol. 2019 Jun;46 Suppl 21:195-223. doi: 10.1111/jcpe.13057. Erratum in: J Clin Periodontol. 2020 Jan;47(1):129. — View Citation

Avila-Ortiz G, Elangovan S, Kramer KW, Blanchette D, Dawson DV. Effect of alveolar ridge preservation after tooth extraction: a systematic review and meta-analysis. J Dent Res. 2014 Oct;93(10):950-8. doi: 10.1177/0022034514541127. Epub 2014 Jun 25. Review. — View Citation

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Chan D, Pelekos G, Ho D, Cortellini P, Tonetti MS. The depth of the implant mucosal tunnel modifies the development and resolution of experimental peri-implant mucositis: A case-control study. J Clin Periodontol. 2019 Feb;46(2):248-255. doi: 10.1111/jcpe.13066. Epub 2019 Feb 7. — View Citation

Del Fabbro M, Bucchi C, Lolato A, Corbella S, Testori T, Taschieri S. Healing of Postextraction Sockets Preserved With Autologous Platelet Concentrates. A Systematic Review and Meta-Analysis. J Oral Maxillofac Surg. 2017 Aug;75(8):1601-1615. doi: 10.1016/j.joms.2017.02.009. Epub 2017 Feb 20. Review. — View Citation

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Gamal AY, Abdel Ghaffar KA, Alghezwy OA. Crevicular Fluid Growth Factors Release Profile Following the Use of Platelet-Rich Fibrin and Plasma Rich Growth Factors in Treating Periodontal Intrabony Defects: A Randomized Clinical Trial. J Periodontol. 2016 Jun;87(6):654-62. doi: 10.1902/jop.2016.150314. Epub 2016 Feb 15. — View Citation

Hämmerle CH, Araújo MG, Simion M; Osteology Consensus Group 2011. Evidence-based knowledge on the biology and treatment of extraction sockets. Clin Oral Implants Res. 2012 Feb;23 Suppl 5:80-2. doi: 10.1111/j.1600-0501.2011.02370.x. Review. Erratum in: Clin Oral Implants Res. 2012 May;23(5):641. — View Citation

Jung RE, Philipp A, Annen BM, Signorelli L, Thoma DS, Hämmerle CH, Attin T, Schmidlin P. Radiographic evaluation of different techniques for ridge preservation after tooth extraction: a randomized controlled clinical trial. J Clin Periodontol. 2013 Jan;40(1):90-8. doi: 10.1111/jcpe.12027. Epub 2012 Nov 19. — View Citation

Kämpfer H, Pfeilschifter J, Frank S. Expressional regulation of angiopoietin-1 and -2 and the tie-1 and -2 receptor tyrosine kinases during cutaneous wound healing: a comparative study of normal and impaired repair. Lab Invest. 2001 Mar;81(3):361-73. — View Citation

Lin Z, Rios HF, Volk SL, Sugai JV, Jin Q, Giannobile WV. Gene expression dynamics during bone healing and osseointegration. J Periodontol. 2011 Jul;82(7):1007-17. doi: 10.1902/jop.2010.100577. Epub 2010 Dec 13. — View Citation

Marenzi G, Riccitiello F, Tia M, di Lauro A, Sammartino G. Influence of Leukocyte- and Platelet-Rich Fibrin (L-PRF) in the Healing of Simple Postextraction Sockets: A Split-Mouth Study. Biomed Res Int. 2015;2015:369273. doi: 10.1155/2015/369273. Epub 2015 Jul 26. — View Citation

Miron RJ, Zucchelli G, Pikos MA, Salama M, Lee S, Guillemette V, Fujioka-Kobayashi M, Bishara M, Zhang Y, Wang HL, Chandad F, Nacopoulos C, Simonpieri A, Aalam AA, Felice P, Sammartino G, Ghanaati S, Hernandez MA, Choukroun J. Use of platelet-rich fibrin in regenerative dentistry: a systematic review. Clin Oral Investig. 2017 Jul;21(6):1913-1927. doi: 10.1007/s00784-017-2133-z. Epub 2017 May 27. Review. — View Citation

Moraschini V, Barboza ES. Effect of autologous platelet concentrates for alveolar socket preservation: a systematic review. Int J Oral Maxillofac Surg. 2015 May;44(5):632-41. doi: 10.1016/j.ijom.2014.12.010. Epub 2015 Jan 24. Review. — View Citation

Singh A, Kohli M, Gupta N. Platelet rich fibrin: a novel approach for osseous regeneration. J Maxillofac Oral Surg. 2012 Dec;11(4):430-4. doi: 10.1007/s12663-012-0351-0. Epub 2012 Apr 10. — View Citation

Srinivas B, Das P, Rana MM, Qureshi AQ, Vaidya KC, Ahmed Raziuddin SJ. Wound Healing and Bone Regeneration in Postextraction Sockets with and without Platelet-rich Fibrin. Ann Maxillofac Surg. 2018 Jan-Jun;8(1):28-34. doi: 10.4103/ams.ams_153_17. — View Citation

Tan WL, Wong TL, Wong MC, Lang NP. A systematic review of post-extractional alveolar hard and soft tissue dimensional changes in humans. Clin Oral Implants Res. 2012 Feb;23 Suppl 5:1-21. doi: 10.1111/j.1600-0501.2011.02375.x. Review. — View Citation

Temmerman A, Vandessel J, Castro A, Jacobs R, Teughels W, Pinto N, Quirynen M. The use of leucocyte and platelet-rich fibrin in socket management and ridge preservation: a split-mouth, randomized, controlled clinical trial. J Clin Periodontol. 2016 Nov;43(11):990-999. doi: 10.1111/jcpe.12612. Epub 2016 Sep 21. — View Citation

Tonetti M, Cugini MA, Goodson JM. Zero-order delivery with periodontal placement of tetracycline-loaded ethylene vinyl acetate fibers. J Periodontal Res. 1990 Jul;25(4):243-9. — View Citation

Van der Weijden F, Dell'Acqua F, Slot DE. Alveolar bone dimensional changes of post-extraction sockets in humans: a systematic review. J Clin Periodontol. 2009 Dec;36(12):1048-58. doi: 10.1111/j.1600-051X.2009.01482.x. Review. — View Citation

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* Note: There are 23 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Concentrations changes of the molecules and inflammatory mediators	Concentrations changes of the molecules and inflammatory mediators in the gingival crevicular fluid (GCF) or wound fluid (WF) from the extraction sockets in L-PRF group and control group at baseline (from GCF), 6 hours, 24 hours, 3 days, 7 days.	Baseline, 6 hours, 24 hours, 3 days and 7 days
Secondary	Genes expression profiles	Genes expression profiles of the growth and differentiation factors and inflammatory mediators from the tissue specimen taken from the post-extraction sockets at 3 days.	Baseline and 3 days
Secondary	Laser Doppler Flowmetry (LDF) measurement	A commercially available Laser Doppler Blood FlowMeter equipped with a standard fiber optic probe will be used for LDF measurements before tooth extraction, immediately postoperatively, 6 hours, 24 hours, 3 days and 7 days.	Before and immediately after the tooth extraction, 6 hours, 24 hours, 3 days and 7 days
Secondary	Radiographic bone changes (Cone-beam computed tomography)	Cone-beam computed tomography (CBCT) images will be obtained before extraction as the baseline and at the 4 months.	Baseline and 4 months
Secondary	Wound Healing Index (HI)	Soft tissue healing will be assessed by Wound Healing Index (1 = very poor, 2 = poor, 3 = good, 4 = very good, 5 = excellent).	6 hours, 24 hours, 3 days and 7 days
Secondary	Visual analog scale (VAS)	A 10-point VAS with a score of 0 that equals "no pain" and a score of 10 that equals "worst pain imaginable" will be used to evaluate the postoperative pain at 6 hours, 24 hours, 3 days and 7 days. The patients will be asked to fill the pain they feel at the time of questioning. Questionnaires will be collected at the one-week follow-up visit.	6 hours, 24 hours, 3 days and 7 days