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Maxillary sinus grafting with and without simultaneous implant placement: technical considerations and case reports
The International Journal of Periodontics & Restorative Dentistry
|December 1, 1994
Summary
Maxillary sinus grafting using demineralized freeze-dried human bone and tricalcium phosphate is effective for bone augmentation. The study details three approaches based on remaining bone height for successful dental implant placement.
Area of Science:
- Oral and Maxillofacial Surgery
- Regenerative Medicine
- Biomaterials Science
Background:
- Maxillary sinus augmentation is crucial for dental implant success in atrophic jaws.
- Demineralized freeze-dried human cortical bone (DFDBHCB) and resorbable tricalcium phosphate (TCP) are utilized bone graft materials.
- Different residual bone heights necessitate varied surgical techniques for sinus grafting.
Observation:
- The study presents three distinct clinical scenarios for maxillary sinus grafting.
- Minimal bone (<1 mm) coronal to the sinus is addressed via a crestal approach.
- 1-4 mm or >4 mm of bone coronal to the sinus is managed with lateral approaches, with simultaneous implant placement in the latter.
Findings:
- Successful sinus grafting and bone regeneration were achieved across all three presented situations.
- The choice of surgical approach (crestal vs. lateral) is determined by the available bone height.
- Simultaneous implant placement is feasible when significant bone height (>4 mm) is present.
Implications:
- This study provides a practical guide for clinicians performing maxillary sinus grafting.
- The described techniques enhance predictability for dental implant rehabilitation in the maxilla.
- The combination of DFDBHCB and TCP offers a viable solution for bone regeneration in challenging implant cases.