| Autor: |
Simunek, Antonin, Kopecka, Dana, Somanathan, Rakesh V., Pilathadka, Shriharsha, Brazda, Tomas |
| Předmět: |
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| Zdroj: |
International Journal of Oral & Maxillofacial Implants; 2008, Vol. 23 Issue 5, p935-942, 8p, 3 Color Photographs, 4 Charts, 1 Graph |
| Abstrakt: |
Purpose: To compare the efficacy of 2 common materials in sinus augmentation surgery and to assess their contribution when enriched with autogenous bone. Materials and Methods: The prospective human study was performed in 48 sinus grafting operations using β-tricalcium phosphate or deproteinized bovine bone (pure or mixed with 10% to 20% autogenous bone) or autogenous bone. Biopsy specimens were taken after 9 months. Statistical evaluation was done with a 2-sample t test (P < .05). Results: When autogenous bone was used, 49.2% ± 3.1% of new bone was found, which is significantly higher than in all the other groups. A higher proportion (34.2% ± 13.1%) of the new vital bone was found in the deproteinized bovine bone group, in comparison with the β-tricalcium phosphate group (21.4% ± 8.1%) and the β-tricalcium phosphate composite graft group (24.0% ± 6.6%; P < .05). No significant differences between single-component grafts and corresponding composite grafts were established. Conclusions: Sinus augmentation with the aforementioned augmentation materials is a well-accepted procedure. However, autogenous bone alone was the best material. More new bone was found using deproteinized bovine bone than β-tricalcium phosphate. The addition of 10% to 20% autogenous bone to the bone substitute did not significantly influence the new bone formation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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