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Supracrestal bone growth around partially inserted titanium implants in dogs. A pilot study
S Renvert1, N Claffey, H Orafi
1Department of Periodontology, Faculty of Odontology, University of Lund, Sweden.
Clinical Oral Implants Research
|December 1, 1996
Summary
This study shows that titanium implants with space maintainers can promote new bone growth in dogs. Using a non-resorbable membrane significantly enhanced bone gain around the implants.
Area of Science:
- Oral surgery
- Biomaterials science
- Regenerative medicine
Background:
- Alveolar bone loss can compromise dental implant stability.
- Techniques to augment bone height around implants are crucial for successful restoration.
- Space maintainers offer a novel approach to create a protected environment for bone regeneration.
Purpose of the Study:
- To evaluate the potential of space maintainers to promote coronal bone growth around titanium implants.
- To compare bone regeneration with and without a non-resorbable membrane.
Main Methods:
- Eight titanium implants were placed in dogs' edentulous premolar areas, with 6 threads exposed.
- Perforated dome-shaped titanium space maintainers were used, with autogenous bone graft placed underneath.
- One side utilized a non-resorbable expanded polytetrafluoroethylene (ePTFE) membrane, while the other served as a control.
- Submerged healing occurred over a 3-month period.
Main Results:
- A mean new bone gain of 2.5 mm was observed across all specimens.
- Sites using the ePTFE membrane showed significantly greater bone height increase (3.1 mm) compared to control sites (1.9 mm) (p < 0.05).
Conclusions:
- Titanium space maintainers facilitate coronal bone growth in a protected space around implants with exposed threads.
- The use of ePTFE membranes significantly enhances bone augmentation in this model.
- This technique shows promise for alveolar bone regeneration in implant dentistry.