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Alveolar Ridge Splitting With Simvastatin/PRF Composite and Simultaneous Implant Placement (ARS-SIMV)

2 juillet 2026 mis à jour par: Maruwan Ali Alteer

Alveolar Ridge Splitting Augmented With Simvastatin/Platelet-Rich Fibrin Composite With Simultaneous Implant Placement in Horizontal Ridge Augmentation: A Randomized Controlled Clinical Trial

This randomized controlled clinical trial evaluated the effectiveness of platelet-rich fibrin (PRF) and a simvastatin/PRF composite combined with a xenogeneic bone graft during alveolar ridge splitting with simultaneous implant placement in patients with horizontal alveolar ridge deficiency. Twenty-one participants were randomly allocated into three groups: a control group receiving xenogeneic bone graft alone, a PRF group receiving xenogeneic bone graft blended with PRF, and a simvastatin/PRF group receiving xenogeneic bone graft blended with a simvastatin/PRF composite. Clinical and radiographic outcomes were assessed to compare horizontal and vertical bone gain, bone density, and keratinized tissue width after treatment.

Aperçu de l'étude

Description détaillée

Horizontal alveolar ridge deficiency frequently complicates implant placement following tooth loss. Alveolar ridge splitting is a well-established technique for horizontal ridge augmentation that allows simultaneous implant placement when sufficient vertical bone height is available. However, the predictability of bone regeneration may be influenced by the grafting material used.

Platelet-rich fibrin (PRF) is an autologous biomaterial rich in platelets, leukocytes, and growth factors that may enhance angiogenesis, soft tissue healing, and bone regeneration. Simvastatin has also demonstrated osteogenic and angiogenic properties through stimulation of bone morphogenetic protein-2 (BMP-2) expression and inhibition of osteoclastic activity. Combining simvastatin with PRF may further improve regenerative outcomes.

This single-center, randomized controlled clinical trial included 21 participants with horizontal alveolar ridge deficiency requiring implant-supported rehabilitation. Participants were randomly allocated into three equal groups (n = 7 per group). Group I underwent alveolar ridge splitting with simultaneous implant placement and augmentation using a xenogeneic bone graft. Group II received a xenogeneic bone graft blended with PRF. Group III received a xenogeneic bone graft blended with a simvastatin/PRF composite.

Clinical and radiographic evaluations were performed to assess horizontal bone gain, vertical bone gain, bone density using cone-beam computed tomography (CBCT), and keratinized tissue width. The study aimed to determine whether the addition of PRF alone or in combination with simvastatin could improve regenerative outcomes compared with conventional xenogeneic bone grafting.

Type d'étude

Interventionnel

Inscription (Réel)

21

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

    • Giza Governorate
      • Cairo, Giza Governorate, Egypte
        • Faculty of Oral and Dental Surgery, Misr University for Science and Technology

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte

Accepte les volontaires sains

Non

La description

Inclusion Criteria:

Horizontal alveolar ridge width of 3-5 mm. Vertical alveolar bone height of ≥11 mm. Edentulous site located in the mandibular anterior region. Absence of buccal bone undercuts. Male or female participants aged 18-50 years. Good general health and medically fit to undergo oral surgical procedures. Absence of periapical pathology at the intended implant site. Adequate crown height space to achieve a favorable crown-to-implant ratio. Willingness and ability to attend all scheduled follow-up visits. Provision of written informed consent.

Exclusion Criteria:

Uncontrolled systemic diseases (e.g., uncontrolled diabetes mellitus), active infection, bleeding disorders, or current anticoagulant therapy.

Severe systemic diseases (e.g., uncontrolled hypertension or severe cardiovascular disease).

Severe alveolar bone deficiencies not suitable for ridge splitting. Pregnancy or breastfeeding. Inability to comply with postoperative instructions or follow-up visits. Known allergy or hypersensitivity to simvastatin or study materials. Individuals from vulnerable populations unable to provide valid informed consent.

Bruxism or other parafunctional oral habits.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: control group
Participants underwent alveolar ridge splitting with simultaneous implant placement and augmentation using a xenogeneic bone graft.
Surgical expansion of the horizontally deficient alveolar ridge followed by immediate dental implant placement.
Xenogeneic bone graft used to augment the expanded alveolar ridge around the implant.
Expérimental: PRF Group
Participants underwent alveolar ridge splitting with simultaneous implant placement and augmentation using a xenogeneic bone graft blended with platelet-rich fibrin (PRF).
Surgical expansion of the horizontally deficient alveolar ridge followed by immediate dental implant placement.
Xenogeneic bone graft used to augment the expanded alveolar ridge around the implant.
Autologous platelet-rich fibrin prepared from the participant's blood and blended with the xenogeneic bone graft.
Expérimental: Simvastatin/PRF Group
Participants underwent alveolar ridge splitting with simultaneous implant placement and augmentation using a xenogeneic bone graft blended with a simvastatin/platelet-rich fibrin (PRF) composite.
Surgical expansion of the horizontally deficient alveolar ridge followed by immediate dental implant placement.
Xenogeneic bone graft used to augment the expanded alveolar ridge around the implant.
Autologous platelet-rich fibrin prepared from the participant's blood and blended with the xenogeneic bone graft.
Locally applied simvastatin incorporated into the PRF/xenogeneic bone graft composite to enhance bone regeneration.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Horizontal Bone Gain
Délai: 6 months after surgery
Horizontal bone gain was assessed by measuring the change in alveolar ridge width using cone-beam computed tomography (CBCT). Measurements were obtained by superimposition of preoperative and 6-month postoperative CBCT scans at standardized reference levels.
6 months after surgery
Vertical Bone Gain
Délai: 6 months after surgery
Vertical bone gain was assessed by comparing preoperative and 6-month postoperative CBCT scans using standardized reference points.
6 months after surgery

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Bone Density
Délai: 6 months after surgery
Bone density of the augmented site was evaluated using CBCT gray scale values.
6 months after surgery
Keratinized Tissue Width
Délai: Baseline and 6 months after surgery
Keratinized tissue width was measured clinically using a calibrated periodontal probe.
Baseline and 6 months after surgery
Implant Stability
Délai: Baseline (immediately after implant placement) and 6 months after surgery.
Implant stability was assessed using the Implant Stability Test (IST) device. Measurements were recorded as IST values immediately after implant placement and at the 6-month follow-up.
Baseline (immediately after implant placement) and 6 months after surgery.

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

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Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

2 juin 2025

Achèvement primaire (Réel)

2 mai 2026

Achèvement de l'étude (Réel)

30 mai 2026

Dates d'inscription aux études

Première soumission

2 juillet 2026

Première soumission répondant aux critères de contrôle qualité

2 juillet 2026

Première publication (Réel)

9 juillet 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

9 juillet 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

2 juillet 2026

Dernière vérification

1 juillet 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Description du régime IPD

There is no plan to share individual participant data (IPD) with other researchers. De-identified participant data will not be made publicly available. Study results will be disseminated through peer-reviewed publications and conference presentations.

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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