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Related Experiment Video

Updated: Jul 1, 2026

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva
07:51

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva

Published on: January 12, 2019

Bone Ring Grafts Versus Non-Resorbable Membrane GBR for Vertical Ridge Augmentation: A Prospective Cohort Study.

Ammar Almarghlani, Hanin Alqurashy, Mohanad Alnahdi

    Oral Health & Preventive Dentistry
    |June 30, 2026
    PubMed
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    The bone-ring graft technique yielded superior vertical bone gain compared to guided bone regeneration (GBR) with non-resorbable membranes. This bone augmentation method also showed fewer complications like membrane exposure.

    Area of Science:

    • Dentistry
    • Oral Surgery
    • Regenerative Medicine

    Background:

    • Vertical alveolar bone defects present a significant challenge for dental implant placement.
    • Advanced bone augmentation techniques are crucial for successful rehabilitation of atrophic mandibles.

    Purpose of the Study:

    • To compare short-term vertical bone gain between the bone-ring graft technique and guided bone regeneration (GBR) using a non-resorbable membrane.
    • To evaluate the incidence of complications associated with each technique in patients with vertical alveolar deficiencies.

    Main Methods:

    • A prospective cohort study included 30 patients with posterior mandibular vertical bone defects (≥4 mm).
    • Group A: bone ring with collagen membrane. Group B: allogeneic bone grafts with dense polytetrafluoroethylene (d-PTFE) membranes.
    Keywords:
    alveolar ridge reconstructionbone-ring graftguided bone regenerationnon-resorbable membranevertical bone augmentation

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    Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials
    08:41

    Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials

    Published on: August 13, 2019

    Related Experiment Videos

    Last Updated: Jul 1, 2026

    A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva
    07:51

    A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva

    Published on: January 12, 2019

    Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials
    08:41

    Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials

    Published on: August 13, 2019

  • Radiographic evaluation using CBCT and periapical radiographs assessed vertical bone height gain at multiple postoperative intervals.

    • Main Results:

    • The bone-ring graft technique (Group A) achieved significantly greater vertical bone gain (9.1-10.6 mm) versus GBR (Group B) (6.9-7.8 mm) at all follow-up points (p < 0.0001).
    • Membrane exposure was significantly more frequent in the GBR group (Group B) (p ≤ 0.02).
    • No significant differences were found in plaque index, swelling, or infection rates between the groups.

    Conclusions:

    • The bone-ring graft technique demonstrates superior efficacy in achieving vertical bone gain for alveolar ridge augmentation.
    • GBR with non-resorbable membranes resulted in a higher rate of membrane exposure.
    • Further long-term studies are warranted to validate these short-term findings.