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Dentistry and Maxillofacial

SINUS LIFT WITH AUTOLOGOUS BONE ALONE OR IN ADDITION TO EQUINE BONE: AN IMMUNOHISTOCHEMICAL STUDY IN MAN

2011
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Author : Piccirilli M., Piattelli A., Perrotti V., Pagnutti S., Danilo A. Di Stefano, Artese L.

Sinus augmentation with a mixture of autologous bone and equine-enzymatically deantigenated xenograft

The aim of the present study was to perform a comparative histological and immunohistochemical evaluation of microvessel density, vascular endothelial growth factor, and nitric oxide synthase (NOS) expression in sinus augmentation using autologous bone alone or in combination with equine bone. Sixteen patients underwent sinus augmentation with autologous bone and a 50:50 mixture of autologous and equine bone. Control cores were harvested from preexisting nonaugmented bone under the sinus floor. The specimens were processed for immunohistochemistry. The greatest values of microvessel density were found in the sites grafted with autologous bone with significant differences between control versus autologous group (P < 0.01) and control versus autologous + equine group (P < 0.01). The higher and lower intensities of vascular endothelial growth factor and NOS3 expression were prevalent in the sites grafted with autologous bone with significant differences with the controls (P < 0.05). No significant differences (P > 0.05) were found in the NOS1 expression among the groups. The results obtained showed that the mixture of autologous and equine bone was biocompatible, and its use was associated with new blood vessels ingrowth during healing, which has been found to be extremely important for bone formation.

PRODUCTS USED: Osteoxenon Granules, Biocollagen Membrane BCG-XC30

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