[Radiography study on osteotome sinus floor elevation with placed implant simultaneously with no graft augmentation]
1Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China.
Summary
Osteotome sinus floor elevation (OSFE) without bone grafting, when performed simultaneously with implant placement, successfully augments endo-sinus bone height and volume. Residual bone height, implant protrusion length, and bone regeneration period significantly impact augmentation outcomes.
Area of Science:
- Dentistry
- Oral Surgery
- Biomaterials
Background:
- Maxillary sinus floor elevation is crucial for dental implant placement in atrophic posterior maxilla.
- Traditional sinus lifts often require bone grafting, increasing complexity and cost.
- Simultaneous implant placement with osteotome sinus floor elevation (OSFE) without grafting offers a potentially simpler alternative.
Purpose of the Study:
- To evaluate endo-sinus bone height and volume changes after OSFE without bone graft, with simultaneous implant placement.
- To identify factors influencing endo-sinus bone augmentation in this procedure.
- To assess implant success and marginal bone loss post-procedure.
Main Methods:
- 38 edentulous patients underwent OSFE with simultaneous implant placement (44 implants) without grafting materials.
- Cone beam computed tomography (CBCT) was used for pre- and post-operative analysis (9-68 months).
- Gained bone height and endo-sinus gained bone volume (ESGBV) were measured; statistical analysis identified impacting factors.
Main Results:
- Significant bone augmentation was observed, with mean gained bone height of 2.78 mm and mean ESGBV of 122.15 mm³.
- Lower initial residual bone height (RBH) correlated with greater bone gain.
- Longer implant protrusion length (PL) and longer bone regeneration periods positively impacted bone gain.
Conclusions:
- OSFE without bone graft, combined with simultaneous implant placement, effectively increases endo-sinus bone height and volume.
- RBH, PL, and bone regeneration period are key factors influencing augmentation success.
- The procedure demonstrated successful implant loading with minimal marginal bone loss.
