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International Journal of Morphology

versión On-line ISSN 0717-9502


CHAVES NETTO, Henrique Duque de Miranda et al. Histological Analyses of Osseous Repair Defects: Recognized of Critic Defects. Int. J. Morphol. [online]. 2009, vol.27, n.4, pp.1121-1127. ISSN 0717-9502.

Surgical procedures involving maxillofacial region frequently require bone grafting to reconstruct the congenital or acquired defects, as well to aesthetic. The bone defect can critical or non-critical. To perform the present studied were used 8 dogs, males. It was performed 2 bicortical defects having 8 mm of diameter on the calvarium of each animal. The cavities were filled up thru the following way: group 1 ­ blood clot, group 2 ­ particulate autogenous bone graft. Thru the descriptive radiologic and histological analysis, it was observed on 3 weeks period that The group 2 was the only one that presented new bone apposition. On the 6 weeks sacrifice period. The group 2 was the only one that showed advanced resorption stage of the bone grafts particles used for fulfillment being, also the only one that showed periphery of the defects without limit. On this way, it may be conclude that bone defects over 8mm can be considered Critical, being necessary some method to help tissue repair, as well as, autogenous bone grafts works well when helping this regeneration process, being indicated to assist bone repair like this performed on this study.

Palabras clave : Bone grafts; Critical defect; Osseous repair.

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