Publicado 4 números por año
ISSN Imprimir: 1050-6934
ISSN En Línea: 1940-4379
Indexed in
Effect of Bioactive Ceramic and Recombinant Human Transforming Growth Factor-Beta (rhTGF-beta) on Regeneration of Parietal Bone Defects in Rat
SINOPSIS
Aims: The purpose of this study was to evaluate the regenerative response of parietal bone defects in rats to bioactive ceramic and TGF-beta 1. Materials and Methods: Sixty mature adult rats with initial weights of 300 g to 324 g were used. The diameter of each defect was 3 mm. The animals were divided into four study groups consisting of 15 rats per group. Groups 1 and 3 (control groups) received 30 μg bioceramic per surgical defect site. Groups 2 and 4 (experimental groups) received 30 μg bioceramic combined with 10 μL of reconstituted TGF-beta 1 (200 ng). Animals of Groups 1 and 3 were euthanized at 18 days; Group 2 and 4 animals were terminated at 49 days after surgery. Each of the outcomes was analyzed via two-way analysis of variance model (ANOVA). Results: Histologic reactions to the implants were similar with no significant difference between bioceramic and bioceramic + TGF-beta 1 specimens. In the 18-day specimens, the percentage of ceramic was marginally higher than the 49-day specimens. No significant difference was noted in the percentage of bone in 18-day and 49-day specimens. Conclusions: Based on the findings of this study, it was concluded that TGF-beta 1 promoted no significant increase in new bone when compared to bioactive ceramic alone.
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