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Factors affecting changes in sinus graft height between and above the placed implants.
Ofer Mardinger1, Gavriel Chaushu, Sheli Sigalov
1Department of Oral And Maxillofacial Surgery, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv, Israel. ofer.mardinger@gmail.com
Summary
Anorganic bovine bone significantly maintained sinus graft height compared to autogenous bone. Grafting material type and time are key factors in vertical bone height changes after sinus augmentation.
Area of Science:
- Dental implantology
- Bone regeneration
- Radiographic analysis
Background:
- Sinus augmentation is crucial for dental implant placement in the posterior maxilla.
- Graft height maintenance is essential for long-term implant success.
- Different bone graft materials exhibit varying dimensional stability.
Purpose of the Study:
- To compare radiographic dimensional changes of sinus graft height.
- To evaluate factors influencing graft height changes (time, graft material).
- To assess changes above and between implants post-sinus augmentation.
Main Methods:
- 42 patients (50 sinus augmentations) were analyzed.
- Panoramic radiographs evaluated sinus graft height changes.
- Autogenous bone and anorganic bovine bone were compared.
Main Results:
- Autogenous bone showed 23% reduction between implants and 13% above.
- Anorganic bovine bone showed 6.5% reduction between and 0% above implants.
- Graft material and time significantly correlated with height reduction.
Conclusions:
- Grafting material is the primary factor influencing vertical bone height reduction.
- Anorganic bovine bone demonstrated superior height maintenance up to 10 years.
- Functional implants also influence graft height stability.