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Maxillary sinus floor augmentation using a beta-tricalcium phosphate (Cerasorb) alone compared to autogenous bone
Steven A Zijderveld1, Ilara R Zerbo, Johan P A van den Bergh
1Department of Oral and Maxillofacial Surgery, Vrije Universiteit Medical Center, Academic Center for Dentistry (ACTA), Amsterdam, The Netherlands. s.be@antonius.net
Summary
Beta-tricalcium phosphate demonstrated reliable bone formation for maxillary sinus floor elevation, achieving successful implant integration. This synthetic graft offers a viable alternative to autogenous bone, with no implant failures observed in the study.
Area of Science:
- Oral and Maxillofacial Surgery
- Regenerative Medicine
- Biomaterials Science
Background:
- Maxillary sinus floor elevation is crucial for dental implant placement in atrophic maxillae.
- Autogenous bone is the traditional gold standard, but it has limitations.
- Alternative bone graft materials are being investigated for sinus augmentation.
Purpose of the Study:
- To compare beta-tricalcium phosphate (Cerasorb) with autogenous chin bone for bone formation in maxillary sinus floor elevation.
- To evaluate the clinical and histologic outcomes of these graft materials.
- To assess implant survival rates following sinus augmentation.
Main Methods:
- A prospective study involving 10 patients undergoing maxillary sinus floor elevation.
- Split-mouth design used in bilateral cases, comparing beta-tricalcium phosphate to autogenous bone.
- Unilateral cases augmented solely with beta-tricalcium phosphate.
- Implants placed after 6 months; biopsy samples collected during surgery.
Main Results:
- Sufficient bone height increase achieved in all cases, confirmed radiographically.
- No implant losses or failures occurred during a mean follow-up of nearly 1 year.
- Clinical characteristics differed between graft materials, with notable differences in drilling resistance.
Conclusions:
- Beta-tricalcium phosphate shows promise as a clinically reliable bone graft material for sinus floor elevation.
- The procedure's success may be linked to the prerequisite of at least 4 mm of initial bone height.
- While autogenous bone remains a gold standard, beta-tricalcium phosphate is a viable option for limited volume augmentation.