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Maxillary sinus floor elevation surgery. A clinical, radiographic and endoscopic evaluation
Nicolaas M Timmenga1, Gerry M Raghoebar, Ranny van Weissenbruch
1Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital, Groningen, the Netherlands. N.M.Timmenga@kchir.azg.nl
Clinical Oral Implants Research
|May 21, 2003
Summary
Sinus floor augmentation using autogenous bone grafts did not significantly impact maxillary sinus function in patients without pre-existing sinusitis. This prospective study found no clinically relevant changes in sinus performance post-procedure.
Area of Science:
- Oral and Maxillofacial Surgery
- Implantology
- Otolaryngology
Background:
- Maxillary sinus floor augmentation with autogenous bone grafts is a standard preimplantology technique.
- The impact of this procedure on maxillary sinus function has not been prospectively evaluated in human studies.
Purpose of the Study:
- To prospectively evaluate the effects of maxillary sinus floor augmentation on maxillary sinus performance in patients undergoing the procedure.
Main Methods:
- Seventeen patients undergoing iliac crest autogenous bone grafting for maxillary sinus floor augmentation participated.
- Evaluations included clinical history, conventional radiography (Waters' projection), and unilateral endoscopic inspection.
- Assessments were performed preoperatively, and at 3 and 9 months post-augmentation.
Main Results:
- Preoperatively, no patients showed clinical or radiological signs of sinusitis, though some had impaired sinus clearance history.
- Endoscopic evaluation revealed subclinical mucosal pathology in a subset of patients pre- and post-augmentation.
- At 3 months, one patient developed chronic maxillary sinusitis; at 9 months, subclinical pathology persisted in two patients.
Conclusions:
- Maxillary sinus floor augmentation with autogenous bone grafts appears to have no clinically significant effect on maxillary sinus performance in patients without pre-existing sinusitis.
- The observed mucosal changes were generally subclinical and did not lead to significant functional impairment.