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Sinus floor elevation using an osteotome technique without grafting materials or membranes.
Patrick R Schmidlin1, Jakob Müller, Andreas Bindl
1Clinic for Preventive Dentistry, Periodontology and Cariology, Dental Institute, University of Zurich, Plattenstrasse 11, 8028 Zürich, Switzerland. patrick.schmidlin@zzmk.uzh.ch
Summary
This study shows that a modified osteotome technique can achieve significant bone regeneration in the sinus floor without grafting materials. This approach resulted in a 100% implant survival rate and substantial new bone formation.
Area of Science:
- Dentistry
- Oral Surgery
- Regenerative Medicine
Background:
- Sinus floor elevation is crucial for dental implant placement in the posterior maxilla.
- Traditional methods often involve graft materials and membranes, increasing complexity and cost.
- Alternative techniques are needed to simplify the procedure and enhance bone regeneration.
Purpose of the Study:
- To radiographically evaluate sinus floor bone remodeling using a modified osteotome technique.
- To assess the efficacy of this technique without bone graft substitutes or barrier membranes.
- To determine implant survival rates and new bone formation following the procedure.
Main Methods:
- A retrospective study involving 24 patients.
- Modified osteotome technique: pilot drilling, fracturing residual bone, raising the schneiderian membrane, and implant placement.
- Restorations were placed after 6 months.
- Radiographic assessment (digital radiographs, digital volume tomography) for bone regeneration and implant stability.
Main Results:
- 100% implant survival rate after a mean follow-up of 17.6 months.
- Significant new bone formation: 86.3% mesially and 89.7% distally.
- Considerable bone regeneration observed, verified by digital volume tomography in nine cases.
- Good clinical success achieved without graft materials or membranes.
Conclusions:
- The modified osteotome technique, utilizing the schneiderian membrane, promotes considerable bone regeneration in the sinus floor.
- This technique offers a viable alternative for sinus floor augmentation, achieving high implant survival rates.
- Omission of graft materials and membranes is feasible with this modified osteotome approach, simplifying the procedure.
