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Completed

NCT Number: NCT07022860

Study on Platelet-Rich Fibrin for Preserving Jawbone After Tooth Extraction Using CBCT Imaging in Adults

The goal of this clinical trial is to learn if platelet-rich fibrin (PRF), a substance made from a person's own blood, helps preserve the bone in the jaw after tooth extraction in adults. The main questions it aims to answer are:

Does PRF help reduce the loss of bone height after tooth removal? Does PRF improve how much of the socket fills with new bone?

Researchers will compare extraction sites treated with PRF to untreated sites in the same person to see if PRF helps preserve more bone.

Participants will:

Have two teeth removed on opposite sides of the mouth Receive PRF in one socket, while the other socket is left to heal naturally Undergo 3D X-ray scans (CBCT) right after extraction and again 3 months later

This study will help researchers understand if using PRF alone can improve healing and reduce bone loss after tooth extraction.

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Key information

Conditions

Socket Preservation

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Zahedan University of Medical Sciences

Zahedan, Sistan & Balouchestan, Iran

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Participants were eligible for inclusion if they met the following criteria:

  • Age ≥ 18 years
  • Smoking fewer than 10 cigarettes per day
  • Presence of adequate bony support (≥ 60%)
  • Indications for bilateral tooth extraction
  • Patients classified as ASA I or II (American Society of Anesthesiologists).
  • No systemic conditions known to impair healing, including the following:
  • Use of bisphosphonates
  • Anticoagulant or antiplatelet therapy
  • History of head and neck radiotherapy
  • Chronic use of NSAIDs or corticosteroids

Exclusion criteria

Patients were excluded if they met any of the following conditions:

  • ASA classification III or IV
  • Pregnancy or lactation
  • Presence of active infection at the surgical site or need for medications beyond standard analgesics
  • Presence of chronic lesions at the extraction site (patients requiring curettage of the lesion were included; those with acute infection requiring antibiotics were excluded).

Treatment and study plan

Platelet-rich fibrin (PRF)

Biological

Platelet-rich fibrin (PRF) is an autologous blood-derived material prepared by centrifuging the participant's venous blood without anticoagulants. The PRF clot is then compressed into a membrane and inserted into the extraction socket. It serves as a scaffold rich in platelets and growth factors to support bone regeneration and healing.

Primary outcomes

  1. Change in Vertical Ridge Height from Baseline to 3 Months Post-Extraction as Measured by Cone-Beam Computed Tomography (CBCT)

    Time frame: Immediately post-extraction (baseline) and at 3 months post-extraction

    Vertical ridge height was measured using cone-beam computed tomography (CBCT) at two time points: immediately after tooth extraction (baseline) and at 3 months post-extraction. Measurements were taken from the crest of the alveolar ridge to the apex of the extraction socket on both the buccal and lingual sides. The difference in ridge height between the two time points represents the amount of vertical bone loss. A smaller change indicates better preservation of ridge height. The measurements were performed by a blinded radiologist using standardized 1 mm slice thickness and reference lines drawn from the socket apex to the ridge crest.

Secondary outcomes

  1. Change in Horizontal Ridge Width at 1 mm, 3 mm, and 5 mm Apical to the Crest from Baseline to 3 Months Post-Extraction Measured by CBCT

    Time frame: Immediately post-extraction (baseline) and at 3 months post-extraction

    Horizontal ridge width was measured at 1 mm, 3 mm, and 5 mm below the lingual/palatal crest using cone-beam computed tomography (CBCT). The change in width between baseline and 3 months post-extraction was calculated. Smaller changes indicate better preservation of ridge width. Measurements were made using standardized reference lines and a slice thickness of 1 mm.

  2. Percentage of Socket Fill at 3 Months Post-Extraction as Measured by CBCT

    Time frame: 3 months post-extraction

    The percentage of socket fill was determined using CBCT imaging at 3 months post-extraction. Socket fill refers to the amount of mineralized bone formation within the extraction site. A higher percentage indicates greater bone regeneration. A blinded radiologist performed all measurements using pre-defined reference points and standardized protocols.

Sponsors and collaborators

Lead sponsor

Zahedan University of Medical Sciences

Other

Registry information

Official study title

Radiographic Assessment of the Effects of Platelet-Rich Fibrin on Socket Preservation: A Case-Control Study

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Jun 15, 2025
Registry last updated
Jun 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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