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Eggshell-Derived Hydroxyapatite With Platelet-Rich Fibrin for Bone Regeneration After Jaw Cyst Removal

5. November 2026 aktualisiert von: Ahmed Nasser Ali Mabkhout

Evaluation of Eggshell-Derived Hydroxyapatite Enhanced With Platelet-Rich Fibrin for Alveolar Bone Regeneration Following Cyst Enucleation

This clinical study aims to evaluate bone healing after the surgical removal of jaw cysts using a bone graft material made from chicken eggshells, with or without platelet-rich fibrin (PRF), a substance prepared from the patient's own blood.

Removal of a jaw cyst can leave an empty space in the surrounding bone. Although this space may heal naturally, bone regeneration can take several months. Hydroxyapatite is a bone-like mineral that may support new bone formation. Combining it with PRF may further improve healing.

This prospective, controlled clinical study is being conducted in Sana'a, Yemen. Participants undergo surgical removal of jaw cysts and receive one of the treatment approaches included in the study. The researchers compare bone healing between treatment groups using clinical examinations and dental imaging, including cone-beam computed tomography (CBCT).

Participants are followed for up to six months after surgery. The study evaluates bone regeneration, postoperative pain, wound healing, and possible complications.

The researchers aim to determine whether eggshell-derived hydroxyapatite combined with PRF improves bone regeneration compared with the other treatments being investigated.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

This prospective, controlled, non-randomized interventional clinical study evaluates the clinical and radiographic outcomes of eggshell-derived hydroxyapatite (HA) enhanced with autologous platelet-rich fibrin (PRF) for alveolar bone regeneration following the enucleation of odontogenic jaw cysts.

The study is conducted in Sana'a, Yemen, among adult patients requiring surgical enucleation of jaw cysts associated with residual bone defects.

The investigational bone graft material is synthesized from processed chicken eggshells using a chemical preparation method involving phosphoric acid. The resulting calcium phosphate material undergoes physicochemical characterization and is prepared for clinical application under controlled aseptic conditions.

The clinical study includes three treatment groups. Participants are assigned using a repeating A-B-C allocation sequence rather than random assignment. The study evaluates eggshell-derived HA combined with autologous PRF against the other treatment approaches defined in the clinical protocol.

When PRF is used, venous blood is collected from the participant and centrifuged without anticoagulants to obtain a fibrin-rich preparation. The PRF is combined with the prepared HA material and applied to the residual bone defect after cyst enucleation.

Participants undergo standardized surgical management and postoperative clinical assessment. Clinical evaluations include wound healing, postoperative pain, swelling, infection, wound dehiscence, and other treatment-related complications.

Radiographic assessments include panoramic radiography and cone-beam computed tomography (CBCT). Bone regeneration is evaluated through changes in residual defect dimensions and radiographic healing during postoperative follow-up, including assessments at three and six months.

The primary objective is to compare radiographic bone regeneration following cyst enucleation among the treatment groups. Secondary objectives include evaluating soft tissue healing, postoperative discomfort, and treatment-related complications.

The study hypothesis is that eggshell-derived HA combined with autologous PRF may provide improved bone regeneration compared with the other treatment approaches. The investigation is intended to generate clinical evidence regarding the regenerative performance and safety of the locally prepared bone graft material.

Studientyp

Interventionell

Einschreibung (Geschätzt)

30

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

      • Sanaa, Jemen
        • Rekrutierung
        • Faculty of Dentistry, Sana'a University
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 60 Jahre (Erwachsene)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

**Inclusion Criteria:**

  • Adult patients aged 18 to 60 years.
  • Patients diagnosed with odontogenic jaw cysts requiring surgical enucleation.
  • Patients with residual jawbone defects measuring at least 1.5 cm following cyst enucleation.
  • Patients in good general health or with medically controlled systemic conditions.
  • Patients who provide informed consent to participate in the clinical study and agree to scheduled postoperative follow-up examinations.

**Exclusion Criteria:**

  • Patients with an active infection at the surgical site.
  • Patients with a history of radiation therapy or bisphosphonate use.
  • Patients with systemic bone diseases or immunosuppression.
  • Pregnant or lactating women.
  • Patients with known allergies or intolerance to any materials used in the study.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Group A: Eggshell-Derived HA + PRF

Following surgical enucleation of the odontogenic jaw cyst, the residual bone defect is filled with locally prepared eggshell-derived hydroxyapatite combined with autologous platelet-rich fibrin (PRF). The PRF is obtained from the patient's venous blood by centrifugation without anticoagulants. The combined graft is placed into the bone cavity before surgical wound closure.

Aktiver Komparator: Group B: Eggshell-Derived HA Alone

Following surgical enucleation of the odontogenic jaw cyst, the residual bone defect is filled with eggshell-derived hydroxyapatite without platelet-rich fibrin. The graft is placed directly into the bone cavity before surgical wound closure.

Kein Eingriff: Group C: Spontaneous Bone Healing

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Alveolar Bone Defect Dimensions Following Cyst Enucleation
Zeitfenster: Baseline and 3 and 6 months after surgery

Radiographic bone regeneration is assessed by measuring changes in the vertical and horizontal dimensions of the residual bone defect in millimeters using cone-beam computed tomography (CBCT). Measurements obtained at baseline are compared with those at 3 and 6 months after surgery to evaluate bone defect reduction among the treatment groups.

Baseline and 3 and 6 months after surgery
Change in Radiographic Density Within the Healing Bone Defect
Zeitfenster: Baseline and 3 and 6 months after surgery

Changes in radiographic density within the bone defect are evaluated using CBCT image gray values obtained from a defined region of interest. Measurements are compared between baseline and follow-up examinations at 3 and 6 months, using a consistent imaging and measurement protocol. Gray values are reported as relative radiographic measurements rather than calibrated Hounsfield units.

Baseline and 3 and 6 months after surgery

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Postoperative Pain Intensity
Zeitfenster: 1 week, 1 month, 3 months, and 6 months after surgery

Postoperative pain is assessed using a patient-reported visual analog scale (VAS) ranging from 0 (no pain) to 10 (worst imaginable pain). Pain scores are recorded during postoperative follow-up visits and compared among the treatment groups.

1 week, 1 month, 3 months, and 6 months after surgery
Clinical Soft Tissue Healing
Zeitfenster: 1 week, 1 month, 3 months, and 6 months after surgery

Healing of the surgical site is assessed clinically by examining mucosal wound closure and recording the presence or absence of swelling and wound dehiscence during postoperative follow-up visits.

1 week, 1 month, 3 months, and 6 months after surgery
Incidence of Postoperative Complications
Zeitfenster: From surgery through 6 months of postoperative follow-up

The number of participants experiencing postoperative complications, including surgical-site infection, wound dehiscence, or other documented procedure-related complications, is recorded and compared among the treatment groups.

From surgery through 6 months of postoperative follow-up

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

14. September 2026

Primärer Abschluss (Geschätzt)

30. Dezember 2027

Studienabschluss (Geschätzt)

30. Dezember 2027

Studienanmeldedaten

Zuerst eingereicht

5. November 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

5. November 2026

Zuerst gepostet (Tatsächlich)

12. November 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

12. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

5. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 08/09/2O25:OMFS

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Beschreibung des IPD-Plans

Individual participant data (IPD) will not be shared with external researchers. Participant-level clinical and radiographic data will be kept confidential in accordance with the approved study protocol, institutional ethical requirements, and applicable data protection regulations. Aggregated and anonymized study results may be reported in scientific publications.

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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