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Effect of Ascorbic Acid-Loaded I-PRF With Partially Demineralized Dentin Graft on Alveolar Ridge Preservation (AA-IPRF-PDDG)

31 ottobre 2026 aggiornato da: Mahmoud Ebrahim Ahmed Elsaadawy, Nahda University

Effect of Ascorbic Acid-Loaded Injectable Platelet-Rich Fibrin Combined With Partially Demineralized Dentin Graft on Alveolar Ridge Preservation: A Randomized Controlled Clinical Trial

The goal of this clinical trial is to find out which treatment best preserves the jawbone after tooth extraction in adults planning to receive a dental implant later.

The study will investigate whether adding vitamin C to a mixture of tooth particles and a material prepared from the participant's own blood helps preserve the jawbone and improve bone healing.

The main questions it aims to answer are

  • Does adding vitamin C help preserve the width of the jawbone after tooth extraction?
  • Does it improve new bone formation compared with the other treatments?

Researchers will compare three treatments to determine whether adding a blood-based material, with or without vitamin C, improves bone preservation.

  1. The first group will receive small particles prepared from their own extracted tooth.
  2. The second group will receive tooth particles mixed with a healing material prepared from their own blood.
  3. The third group will receive tooth particles mixed with the same blood-based material containing vitamin C.

Participants will undergo tooth extraction and receive one of these treatments. They will attend follow-up visits during the healing period.

Researchers will:

  • Examine the treated area during follow-up visits.
  • Take three-dimensional dental scans before treatment and four months later to measure changes in jawbone width and height.
  • Collect a small bone sample during dental implant placement to examine new bone formation and healing.

The study will help determine whether adding vitamin C to the blood-based material provides additional benefits for preserving the jawbone before dental implant placement.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

This study evaluates approaches to preserve the alveolar ridge following tooth extraction before delayed dental implant placement.

The study uses a partially demineralized dentin graft prepared from the participant's extracted tooth as the grafting material. It also investigates whether combining this graft with injectable platelet-rich fibrin (I-PRF), with or without added ascorbic acid (vitamin C), may influence bone healing and ridge preservation.

The rationale for using dentin is based on its potential as an autologous graft material. I-PRF provides an autologous blood-derived component. The addition of vitamin C is being investigated as a possible way to influence the healing response.

The study will assess changes in alveolar ridge dimensions and examine bone tissue collected during implant placement. Histological and histomorphometric analysis will help characterize new bone formation, residual graft material, and connective tissue within the healing site.

The findings may provide information about the role of vitamin C-enriched I-PRF when combined with autogenous dentin grafts for alveolar ridge preservation.

Tipo di studio

Interventistico

Iscrizione (Stimato)

48

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 60 anni (Adulto)

Accetta volontari sani

Sì

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Patients aged 18-60 years. ⁴⁷
  • ASA Type I medically healthy patients with no significant medical history. ⁴⁷
  • Non-restorable teeth indicated for extraction followed by delayed implant placement. ⁴⁸
  • Patients eligible for immediate implant placement but facing factors that prevent implant placement at the time of extraction. ⁴⁸
  • Patients requiring alveolar ridge preservation before planned dental implant placement.
  • Presence of ST IB sockets after extraction. ⁴²-⁴⁴
  • periodontally healthy adjacent teeth. ⁴⁸
  • Adequate oral hygiene plaque index ≤15% and willingness to comply with the study protocol and follow-up visits. ⁴⁷
  • Cooperative patients willing to comply with the 4-month follow-up period. ⁴⁷
  • Ability to understand and sign the informed consent form. ⁴⁷

Exclusion Criteria:

  • Uncontrolled systemic diseases affecting bone healing (e.g., uncontrolled diabetes mellitus).
  • History of radiotherapy or chemotherapy involving the head and neck region.
  • Current use of medications known to influence bone metabolism (e.g., bisphosphonates, denosumab, long-term corticosteroids).
  • Smokers or tobacco users.
  • Pregnancy or lactation.
  • Acute uncontrolled infection extraction site.
  • Patients with poor oral hygiene or untreated active periodontal disease.
  • Psychiatric patients, or those with a learning disability, or those unable to give consent
  • Patients unable or unwilling to attend follow-up visits.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Partially Demineralized Dentin Graft Alone

Participants will undergo alveolar ridge preservation following atraumatic tooth extraction using an autogenous partially demineralized dentin graft (PDDG) prepared from the extracted tooth. The graft will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures. No injectable platelet-rich fibrin (I-PRF) or ascorbic acid will be added.

Alveolar ridge preservation following atraumatic tooth extraction using an autogenous partially demineralized dentin graft (PDDG) prepared from the extracted tooth. The graft will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures. No injectable platelet-rich fibrin (I-PRF) or ascorbic acid will be added.

Sperimentale: Partially Demineralized Dentin Graft Combined with I-PRF

Participants will undergo alveolar ridge preservation using an autogenous partially demineralized dentin graft (PDDG) mixed with injectable platelet-rich fibrin (I-PRF) prepared from the participant's peripheral blood. The resulting mixture, referred to as Sticky Dentin, will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures.

Alveolar ridge preservation using an autogenous partially demineralized dentin graft (PDDG) mixed with injectable platelet-rich fibrin (I-PRF) prepared from the participant's peripheral blood. The resulting sticky dentin mixture will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures.

Sperimentale: Ascorbic Acid-Loaded I-PRF Combined with PDDG

Participants will undergo alveolar ridge preservation using an autogenous partially demineralized dentin graft (PDDG) mixed with injectable platelet-rich fibrin (I-PRF) containing ascorbic acid. The resulting mixture, referred to as AA-Sticky Dentin, will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures.

Alveolar ridge preservation using an autogenous partially demineralized dentin graft (PDDG) mixed with injectable platelet-rich fibrin (I-PRF) containing ascorbic acid. The resulting AA-Sticky Dentin mixture will be placed into the extraction socket, covered with an absorbable gelatin sponge, and secured with sutures.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Radiographic Horizontal Alveolar Ridge Width
Lasso di tempo: Baseline (before alveolar ridge preservation) to 4 months postoperatively.

The change in horizontal alveolar ridge width will be assessed using cone-beam computed tomography (CBCT) scans obtained at baseline before alveolar ridge preservation and 4 months postoperatively. Measurements will be performed at the extraction site using standardized anatomical reference points and consistent measurement procedures. The change in ridge width from baseline to 4 months will be compared among the three study groups.

Baseline (before alveolar ridge preservation) to 4 months postoperatively.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Histomorphometric Analysis of Core Bone Biopsy Specimens
Lasso di tempo: 4 months after alveolar ridge preservation, during implant osteotomy. 4 months after alveolar ridge preservation, during implant osteotomy.

Histomorphometric analysis will be performed on core bone biopsy specimens collected from the alveolar ridge preservation sites during implant osteotomy 4 months postoperatively. The analysis will assess the percentages of newly formed bone, mature bone, and residual dentin graft particles in the specimens, and the results will be compared among the three study groups.

4 months after alveolar ridge preservation, during implant osteotomy. 4 months after alveolar ridge preservation, during implant osteotomy.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Cattedra di studio: Mohamed Sherif EL-Mofty, Professor, Faculty of Dentistry, Nahda University Beni-Suef, Egypt.
  • Direttore dello studio: Shaimaa Hamdy Abd El-Azeem, : Department of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, Nahda University Beni-Suef, Egypt.

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

30 ottobre 2026

Completamento primario (Stimato)

30 marzo 2027

Completamento dello studio (Stimato)

30 giugno 2027

Date di iscrizione allo studio

Primo inviato

17 ottobre 2026

Primo inviato che soddisfa i criteri di controllo qualità

31 ottobre 2026

Primo Inserito (Effettivo)

4 novembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

31 ottobre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • 00D-9-26-8

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Individual participant data will not be shared with other researchers. Only aggregated study results may be disseminated through scientific publications, while participant confidentiality and data privacy will be maintained in accordance with institutional ethical requirements.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .