NCT06945965

Brief Summary

The aim of this study is to evaluate and compare the regenerative potentials of Injectable Platelet-Rich Fibrin (I-PRF), Platelet-Rich Fibrin (PRF), and Blood Clot (BC) as different scaffolds regarding: Radiographic outcomes (increase of root length, increase in thickness of dentinal wall, healing of periapical lesion, and apical closure). Clinical outcomes in the treatment of young, immature permanent teeth with necrotic pulps.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

September 1, 2021

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

April 3, 2025

Completed
24 days until next milestone

First Posted

Study publicly available on registry

April 27, 2025

Completed
Last Updated

April 27, 2025

Status Verified

April 1, 2025

Enrollment Period

3.5 years

First QC Date

April 3, 2025

Last Update Submit

April 22, 2025

Conditions

Keywords

PRFRegenerationBlood ClotScaffolds

Outcome Measures

Primary Outcomes (4)

  • Root Length

    the distance between the CEJ and the apical endpoint mesially (M) and distally (D) on the coronal plane and labially (L) and palatally (P) on the sagittal plane. it was measured by a measure length tool in millimeters.

    12 months

  • Root dentine thickness

    Root dentine thickness was measured as a line from the outer root canal diameter to the canal lumen in the mesial, distal, buccal, and lingual dentinal walls of the root. It was measured from the axial plane at 4 mm and 8 mm from the CEJ. It was measured by the same length-measuring tool in millimeters.

    12 months

  • Apical foramen diameter

    It was measured as a line from the mesial and distal root ends at the coronal plane and from the labial to palatal root ends at the sagittal plane in millimeters.

    12months

  • Bony lesion volume

    The volume of each slice of the lesion was calculated by multiplying the area of each cut by the distance of 0.5mm between the tomographic sections. With the sum of the volume of all the slices, the total volume of the bony lesion was obtained in cubic centimeters.

    12 months

Secondary Outcomes (1)

  • Pulp sensibility

    12 months

Study Arms (3)

Regeneration with Injectable platelet-rich fibrin (i-PRF) scaffold

EXPERIMENTAL

10 ml of venous blood was drawn from the patient's arm. Then it was collected in a sterile tube without anticoagulant. * The collected blood was centrifuged immediately. * The separated plasma and platelets form a light-yellow-colored layer, which is situated at the top of the tube. This is then aspirated using a syringe with a needle and amounts to a partially active injectable form.

Procedure: Injectable platelet-rich fibrin (i-PRF) scaffold

Regeneration with platelet-rich fibrin (PRF)scaffold

EXPERIMENTAL

10 ml venous blood was drawn from the patient's arm * Then it was collected in a sterile tube without anticoagulant. * The collected blood was centrifuged immediately. * Following the centrifugation, the fibrin clot was formed in the middle of the tube between the red corpuscles at the bottom and acellular plasma at the top.

Procedure: platelet-rich fibrin (PRF)scaffold

Regeneration with blood clot (BC) scaffold

ACTIVE COMPARATOR

The file will be passed 2 mm beyond the apical end to induce bleeding inside the canal till approximately 2-3 mm below the CEJ.

Procedure: blood clot (BC) scaffold

Interventions

The separated plasma and platelets form a light-yellow-colored layer, which is situated at the top of the tube. This is then aspirated using a syringe with a needle (partially active injectable form).

Regeneration with Injectable platelet-rich fibrin (i-PRF) scaffold

The fibrin clot was removed from the test tube with sterile tweezers, then cut into fragments, then placed incrementally in the canal space below the CEJ using hand pluggers (without prior induction of apical bleeding).

Regeneration with platelet-rich fibrin (PRF)scaffold

A sterile saline-soaked cotton pellet was placed into the canal 2 mm below the orifice for 15 minutes to form a blood clot.

Regeneration with blood clot (BC) scaffold

Eligibility Criteria

Age6 Years - 25 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Necrotic immature permanent anterior teeth.
  • Teeth not indicated for post/core final restoration.
  • Radiographically: The root has incomplete development with an apical opening of more than 1 mm.

You may not qualify if:

  • Medically compromised patients with blood and immunity disorders. Family history of autoimmune disorder. Also, patients with physical or mental handicapping conditions.
  • Teeth with questionable restorability of the remaining crown/root structure.
  • Pathological tooth mobility.
  • Radiographically: Evidence of root fracture or root resorption (external or internal).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

British University in Egypt

Cairo, 1306, Egypt

Location

Related Publications (4)

  • Masuki H, Okudera T, Watanebe T, Suzuki M, Nishiyama K, Okudera H, Nakata K, Uematsu K, Su CY, Kawase T. Growth factor and pro-inflammatory cytokine contents in platelet-rich plasma (PRP), plasma rich in growth factors (PRGF), advanced platelet-rich fibrin (A-PRF), and concentrated growth factors (CGF). Int J Implant Dent. 2016 Dec;2(1):19. doi: 10.1186/s40729-016-0052-4. Epub 2016 Aug 22.

    PMID: 27747711BACKGROUND
  • El Bagdadi K, Kubesch A, Yu X, Al-Maawi S, Orlowska A, Dias A, Booms P, Dohle E, Sader R, Kirkpatrick CJ, Choukroun J, Ghanaati S. Reduction of relative centrifugal forces increases growth factor release within solid platelet-rich-fibrin (PRF)-based matrices: a proof of concept of LSCC (low speed centrifugation concept). Eur J Trauma Emerg Surg. 2019 Jun;45(3):467-479. doi: 10.1007/s00068-017-0785-7. Epub 2017 Mar 21.

    PMID: 28324162BACKGROUND
  • Metlerska J, Fagogeni I, Nowicka A. Efficacy of Autologous Platelet Concentrates in Regenerative Endodontic Treatment: A Systematic Review of Human Studies. J Endod. 2019 Jan;45(1):20-30.e1. doi: 10.1016/j.joen.2018.09.003. Epub 2018 Nov 13.

    PMID: 30446403BACKGROUND
  • Murray PE. Platelet-Rich Plasma and Platelet-Rich Fibrin Can Induce Apical Closure More Frequently Than Blood-Clot Revascularization for the Regeneration of Immature Permanent Teeth: A Meta-Analysis of Clinical Efficacy. Front Bioeng Biotechnol. 2018 Oct 11;6:139. doi: 10.3389/fbioe.2018.00139. eCollection 2018.

    PMID: 30364277BACKGROUND

MeSH Terms

Conditions

Dental Pulp DiseasesThrombosis

Interventions

proliferation regulatory factors, human urineBlood Coagulation

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic DiseasesEmbolism and ThrombosisVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

HemostasisBlood Physiological PhenomenaCirculatory and Respiratory Physiological Phenomena

Study Officials

  • shehab M Mohamed, Phd

    British University In Egypt

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
The trial design of this study is planned to be a double-blinded design in which the participant and the statistician will be blinded, and only the operator knows which treatment the patient will receive.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Ass.Lecturer

Study Record Dates

First Submitted

April 3, 2025

First Posted

April 27, 2025

Study Start

September 1, 2021

Primary Completion

March 1, 2025

Study Completion

March 1, 2025

Last Updated

April 27, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations