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

2 de julio de 2026 actualizado por: 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.

Descripción general del estudio

Descripción detallada

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.

Tipo de estudio

Intervencionista

Inscripción (Actual)

21

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

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

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto

Acepta Voluntarios Saludables

No

Descripción

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 de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: 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.
Experimental: 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.
Experimental: 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.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Horizontal Bone Gain
Periodo de tiempo: 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
Periodo de tiempo: 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

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Bone Density
Periodo de tiempo: 6 months after surgery
Bone density of the augmented site was evaluated using CBCT gray scale values.
6 months after surgery
Keratinized Tissue Width
Periodo de tiempo: 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
Periodo de tiempo: 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.

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

2 de junio de 2025

Finalización primaria (Actual)

2 de mayo de 2026

Finalización del estudio (Actual)

30 de mayo de 2026

Fechas de registro del estudio

Enviado por primera vez

2 de julio de 2026

Primero enviado que cumplió con los criterios de control de calidad

2 de julio de 2026

Publicado por primera vez (Actual)

9 de julio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

9 de julio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

2 de julio de 2026

Última verificación

1 de julio de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan 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.

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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