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Repeated Injections of i-PRF for Decreasing Root Resorption After the Orthodontic Treatment.

Effect of the Injectable Platelet-rich Fibrin on the Orthodontically Induced Apical Root Resorption Following Non-extraction-based Orthodontic Treatment in Adults: A Randomized Controlled Clinical Trial.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07352241
Enrollment
36
Registered
2026-01-20
Start date
2024-01-13
Completion date
2025-08-04
Last updated
2026-01-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crowding of Anterior Maxillary Teeth

Brief summary

Mandibular incisor crowding is a frequent issue that prompts many adults to seek orthodontic treatment. The treatment may enhance patients' quality of life, facilitate dental plaque control, and improve the quality of periodontal tissue. However, this treatment is accompanied by several side effects, including resorption of the apical portion of the teeth. Platelet-rich concentrates, such as injectable platelet-rich fibrin, have been shown to have positive effects on both soft- and hard-tissue healing. They may serve as a beneficial self-derived material to prevent this complication.

Detailed description

In recent years, increasing attention has been directed toward biologically driven approaches to modulate tissue responses during orthodontic treatment and minimize adverse effects, such as root resorption. Platelet-rich fibrin (PRF), a second-generation autologous platelet concentrate, has emerged as a promising biomaterial due to its high concentration of platelets, leukocytes, and a fibrin matrix that allows gradual release of multiple growth factors, including platelet-derived growth factor (PDGF), transforming growth factor-β (TGF-β), vascular endothelial growth factor (VEGF), and insulin-like growth factor (IGF). However, in 2014, injectable platelet-rich fibrin (I-PRF), which is similar to PRF, was introduced in France by Choukroun, using non-glass tubes and adjusting the centrifugal force. Just like traditional PRF, i-PRF contains high levels of growth factors, stem cells, leukocytes, and cytokines. These growth factors play a crucial role in angiogenesis, tissue regeneration, modulation of inflammation, and bone remodeling, all of which are central processes in orthodontic tooth movement and periodontal healing.

Interventions

PROCEDURE4-time i-PRF injection group

I-PRF will be injected in 4 sessions at 28-day intervals. The injection will administered submucosally in the buccal region of the lower incisors, using 2 ml of i-PRF per session (0.5 ml per incisor). Orthodontic wires will be sequenced until they reach 0.019×0.025-inch stainless steel.

PROCEDURESaline injection

Saline serum will be injected in 4 sessions at 28-day intervals. The injection will be administered submucosally in the buccal region of the lower incisors, using 2 ml of i-PRF per session (0.5 ml per incisor). Orthodontic wires will be sequenced until they reach 0.019×0.025-inch stainless steel.

Sponsors

Damascus University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
17 Years to 25 Years
Healthy volunteers
No

Inclusion criteria

* Adult patients aged between 17 and 28 years * Class I malocclusion with moderate crowding (4-6 mm) according to Little's Irregularity Index (LII) * Normal or inclination for mandibular incisors * Complete permanent teeth.

Exclusion criteria

* Previous orthodontic treatment, * Poor oral hygiene, * Severe skeletal discrepancy, * The presence of coagulation disorders or being under anticoagulant treatment.

Design outcomes

Primary

MeasureTime frameDescription
Change in root lengthFirst assessment time: one day before the commencement of treatment. Second assessment time: within one week following the leveling and alignment stage (The stage is expected to finish within 4 to six months after the beginning of treatment)Root resorption (i.e., change in root length) will be measured by calculating the difference in the full linear length of each incisor (incisal edge to the apex) between two assessment times (in millimeters) using CBCT images.

Countries

Syria

Contacts

PRINCIPAL_INVESTIGATORMohammad I. Idris, DDS

Faculty of Dentistry, University of Damascus

STUDY_DIRECTORAhmad S. Burhan, DDS MSc PhD

Faculty of Dentistry, University of Damascus

STUDY_CHAIRMohammad Y Hajeer, DDS MSc PhD

Faculty of Dentistry, University of Damascus

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 2, 2026