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Spacemaking metal structures for nonresorbable membranes in guided bone regeneration around implants. Two case
C Tinti1, S Parma-Benfenati, F Manfrini
1Department of Periodontology, University of Ferrara, Italy.
The International Journal of Periodontics & Restorative Dentistry
|February 1, 1997
Summary
This study demonstrates a novel surgical technique using gold frames and expanded polytetrafluoroethylene membranes to regenerate bone in alveolar ridge defects. The method successfully created space, leading to complete bone fill and new bone formation in treated patients.
Area of Science:
- Oral surgery
- Regenerative medicine
- Biomaterials science
Background:
- Localized alveolar ridge defects pose challenges for dental implant placement and restoration.
- Maintaining adequate space is crucial for successful bone regeneration in reconstructive surgery.
- Existing techniques may have limitations in creating and preserving space for bone graft materials.
Observation:
- A surgical technique utilizing spacemaking gold frames with expanded polytetrafluoroethylene (ePTFE) membranes was applied to two patients with mandibular alveolar ridge defects.
- The gold frame and ePTFE membrane assembly was adapted to create a dome-shaped space over the defect, preventing membrane collapse.
- The technique was also applied to augment dehisced implant sites.
Findings:
- After a 12-month healing period, standardized measurements confirmed significant bone dimension gain in both patients.
- Radiographic and histopathological analyses revealed complete bone infill within the spaces created by the framed membranes.
- Biopsies confirmed the presence of newly regenerated bone tissue at the treated sites.
Implications:
- This technique offers a promising approach for bone regeneration and augmentation in localized alveolar ridge defects.
- The combination of gold frames and ePTFE membranes effectively creates and maintains space, facilitating predictable bone regeneration.
- Successful application in dehisced implant cases suggests potential for managing peri-implant defects.