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Bone augmentation at fenestrated implants by an osteopromotive membrane technique. A controlled clinical study
C Dahlin1, L Andersson, A Linde
1Department of Oral Biochemistry, University of Göteborg, Gothenburg, Sweden.
Clinical Oral Implants Research
|October 1, 1991
Summary
The osteopromotive membrane technique significantly enhanced new bone formation over jaw bone fenestrations in implant dentistry. This method effectively creates bone where it is lacking, unlike the periosteum alone.
Area of Science:
- Oral Surgery
- Regenerative Medicine
- Biomaterials Science
Background:
- Localized bone deficiency in the jaws presents a significant challenge for successful oral implant placement.
- Ensuring adequate bone volume is critical for implant stability and long-term success.
Purpose of the Study:
- To evaluate the efficacy of an osteopromotive membrane technique in regenerating bone over buccal fenestrations after maxillary implant fixture installation.
- To compare bone regeneration using the membrane technique versus natural healing (periosteum alone).
Main Methods:
- A clinical study involving 7 patients with specific maxillary bone criteria was conducted.
- An expanded polytetrafluoroethylene (e-PTFE) membrane was applied to randomly selected fenestrations.
- Contralateral fenestrations served as controls, without membrane application.
- Photometric assessments were used to quantify newly formed bone.
Main Results:
- The membrane-treated fenestrations showed significantly higher new bone formation (p<0.005) compared to controls.
- Control fenestrations exhibited minimal to no bone regeneration.
- The technique demonstrated effectiveness in creating bone at localized defects around titanium fixtures.
Conclusions:
- The osteopromotive membrane technique is a viable reconstructive method for generating new bone at localized bone fenestrations around titanium implants.
- The periosteum alone in adult humans is insufficient for significant new bone generation at exposed titanium implant sites.
