NCT03734458

Brief Summary

Platelet-rich fibrin (PRF) and Autologous Fibrin Glue (AFG) are fibrin preparation derived from human blood samples and are used in regenerative dentistry. Aim: The aim of this study is to evaluate the level of root coverage using PRF (+) AFG with a coronally advanced flap (CAF) or PRF only with a CAF compared to a sub-epithelial connective tissue graft (CTG) with a CAF for treating Class 1 and 2 gingival recession defects. Additionally, to evaluate the level of keratinized tissue tissue thickness and width using PRF (+) AFG with a CAF or PRF only with a CAF compared to CTG with CAF for Class 1 and 2 gingival recession defects. Method: 48 patients with recession defects will be randomly divided into three different treatment groups. Treatment Group A (n=16) will consist of patients treated with PRF (+) AFG with a CAF, Group B (n=16) will consist of patients treated with PRF only with a CAF and Group C (n=16) will consits of patients treated with CTG with CAF as a control. Clinical measurements will be assessed at baseline and at 1 month and 6 months after the surgery. The clinical measurements that will be recorded, include probing depth, clinical attachment level, and gingval recession parameters. The gingival recession parameters include recession width, depth and thickness.

Trial Health

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Jul 2019

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 3, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

November 8, 2018

Completed
8 months until next milestone

Study Start

First participant enrolled

July 1, 2019

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2021

Completed
Last Updated

October 8, 2019

Status Verified

October 1, 2019

Enrollment Period

1.5 years

First QC Date

October 3, 2018

Last Update Submit

October 4, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Evaluate the level of root coverage using PRF plus AFG with a coronally advanced flap or PRF only with a CAF compared to subepithelial connective tissue graft with a CAF for Class 1 and 2 gingival recession defects.

    To evaluate the level of root coverage using PRF plus AFG compared to CTG or PRF only compared to CTG

    Baseline to 6 months

Secondary Outcomes (1)

  • Evaluate the level of keratinized tissue thickness and width using PRF plus AFG with a CAF, PRF only with a CAF or a SCTG with CAF for Class 1 and 2 gingival recession defects.

    Baseline to 6 months

Study Arms (3)

Group A - PRF plus AFG with a CAF

EXPERIMENTAL

Group A - PRF plus AFG with a CAF: The PRF will be prepared according to the protocol outlined by Choukroun 1. Prior to the surgical procedure, venous blood will be collected via venipuncture from the antecubital vein using one 10 ml sterile glass tube and one 10ml sterile plastic tube. The tubes will be immediately centrifuged at 1300 rpm for 8 minutes to obtain PRF. The fibrin clot formed in the middle part of the tube will be collected. The clot will be transferred to the PRF box and compressed to form a membrane. For the AFG, the liquid will be separated from the red blood cells from the plastic tube using a sterile syringe.

Other: Group A - PRF plus AFG with a CAF

Group B - PRF only with a CAF

EXPERIMENTAL

Group B - PRF only with a CAF: The PRF will be prepared according to the protocol outlined by Choukroun1. Prior to the surgical procedure, venous blood will be collected via venipuncture from the antecubital vein using one 10 ml sterile glass tube. The tubes will be immediately centrifuged at 1300 rpm for 8 minutes to obtain PRF. The fibrin clot formed in the middle part of the tube will be collected. The clot will be transferred to the PRF box and compressed to form a membrane.

Other: Group B - PRF only with a CAF

Group C - CTG with a CAF

ACTIVE COMPARATOR

Group C - CTG with a CAF: Sup-epithelial connective tissue harvest: The palatal donor site should be at least 3mm in thickness. A horizontal incision will be made on the palate 3mm from the maxillary canine to the first molar using a 15 blade. A sub-epithelial connective tissue graft will be harvested with adequate dimensions based on the recipient site. The graft will be sutured over the recipient site with 5-0 chromic gut sutures using a continuous mattress suturing technique.

Other: Group C - CTG with a CAF

Interventions

Group A - PRF plus AFG with a CAF will be used surgically to cover the exposed roots.

Group A - PRF plus AFG with a CAF

Group B - PRF only with a CAF will be used surgically to cover the exposed roots.

Group B - PRF only with a CAF

Group C - CTG with a CAF will be used surgically to cover the exposed roots.

Group C - CTG with a CAF

Eligibility Criteria

Age18 Years+
Sexall(Gender-based eligibility)
Gender Eligibility Details18years and over.
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women aged 18 years or over
  • Miller's Class 1 and Class 2 recession
  • Localized gingival recession of 1-6mm present on 1 or 2 continuous single rooted teeth. Gingival recession is measured from the cemental-enamel junction (CEJ; a stable anatomical landmark on every tooth) to the gingival margin.

You may not qualify if:

  • Current tobacco use (greater than 1 cigarette/week) or history of quitting \< 5 years previously (self reported)
  • Poor oral hygiene (plaque index of 2 or greater) or active periodontal disease (diagnosis of moderate chronic periodontal disease or greater)
  • Currently taking aspirin, prescription blood thinners
  • Type II diabetes with HbA1c greater than 7
  • Immunosuppressed or any other systemic condition that would disqualify subject as an acceptable surgical candidate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UCSF School of Dentistry

San Francisco, California, 94143, United States

Location

Related Publications (10)

  • Choukroun J, Ghanaati S. Reduction of relative centrifugation force within injectable platelet-rich-fibrin (PRF) concentrates advances patients' own inflammatory cells, platelets and growth factors: the first introduction to the low speed centrifugation concept. Eur J Trauma Emerg Surg. 2018 Feb;44(1):87-95. doi: 10.1007/s00068-017-0767-9. Epub 2017 Mar 10.

    PMID: 28283682BACKGROUND
  • 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.

  • Dohan Ehrenfest DM, de Peppo GM, Doglioli P, Sammartino G. Slow release of growth factors and thrombospondin-1 in Choukroun's platelet-rich fibrin (PRF): a gold standard to achieve for all surgical platelet concentrates technologies. Growth Factors. 2009 Feb;27(1):63-9. doi: 10.1080/08977190802636713.

  • Dohan Ehrenfest DM, Bielecki T, Jimbo R, Barbe G, Del Corso M, Inchingolo F, Sammartino G. Do the fibrin architecture and leukocyte content influence the growth factor release of platelet concentrates? An evidence-based answer comparing a pure platelet-rich plasma (P-PRP) gel and a leukocyte- and platelet-rich fibrin (L-PRF). Curr Pharm Biotechnol. 2012 Jun;13(7):1145-52. doi: 10.2174/138920112800624382.

  • Oncu E. The Use of Platelet-Rich Fibrin Versus Subepithelial Connective Tissue Graft in Treatment of Multiple Gingival Recessions: A Randomized Clinical Trial. Int J Periodontics Restorative Dent. 2017 Mar/Apr;37(2):265-271. doi: 10.11607/prd.2741.

  • Dohan DM, Choukroun J, Diss A, Dohan SL, Dohan AJ, Mouhyi J, Gogly B. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part II: platelet-related biologic features. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Mar;101(3):e45-50. doi: 10.1016/j.tripleo.2005.07.009. Epub 2006 Jan 10.

  • Dohan DM, Choukroun J, Diss A, Dohan SL, Dohan AJ, Mouhyi J, Gogly B. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part III: leucocyte activation: a new feature for platelet concentrates? Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Mar;101(3):e51-5. doi: 10.1016/j.tripleo.2005.07.010.

  • Dohan DM, Choukroun J, Diss A, Dohan SL, Dohan AJ, Mouhyi J, Gogly B. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part I: technological concepts and evolution. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Mar;101(3):e37-44. doi: 10.1016/j.tripleo.2005.07.008. Epub 2006 Jan 19.

  • Choukroun J, Diss A, Simonpieri A, Girard MO, Schoeffler C, Dohan SL, Dohan AJ, Mouhyi J, Dohan DM. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part IV: clinical effects on tissue healing. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Mar;101(3):e56-60. doi: 10.1016/j.tripleo.2005.07.011.

  • Choukroun J, Diss A, Simonpieri A, Girard MO, Schoeffler C, Dohan SL, Dohan AJ, Mouhyi J, Dohan DM. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part V: histologic evaluations of PRF effects on bone allograft maturation in sinus lift. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Mar;101(3):299-303. doi: 10.1016/j.tripleo.2005.07.012.

MeSH Terms

Conditions

Gingival Recession

Condition Hierarchy (Ancestors)

Gingival DiseasesPeriodontal DiseasesMouth DiseasesStomatognathic DiseasesPeriodontal Atrophy

Study Officials

  • Yogalakshmi Rajendran, BDS MS

    UCSF School of Dentistry

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 3, 2018

First Posted

November 8, 2018

Study Start

July 1, 2019

Primary Completion

January 1, 2021

Study Completion

January 1, 2021

Last Updated

October 8, 2019

Record last verified: 2019-10

Locations