Comparação de matrizes osseas desmineralizadas sobre o processo de regeneração ossea. Estudo histologico em calvaria de coelhos /c Robson Rodrigues Garcia

AUTOR(ES)
DATA DE PUBLICAÇÃO

1999

RESUMO

The development of materials that can substitute lost bone tissue avoid the necessity of a second surgery to remove an autologous bone graft. Therefore, the aim of this study was to histologically analysis the effect of two different demineralized bone matrix on the bone regeneration process in rabbits skulls. Eighteen rabbits were used, and on each calvaria two surgical bone defects were created, one on the right si de and the other on the left side of the parietal suture. The cavities on the left side were used like control and filled just with the animal blood. In group I, the cavities on the right side were filled with a bovine demineralized bone matrix (Osseobond). In group II, the cavities on the right side were filled with a human demineralized bone matrix (Dembone). The animais were sacrificed in postoperative period of 3,7, e 15 weeks. Histologic analyses of the s~cimens on light microscope revealed that group I the partides were reabsorbed faster than in group II, as seen after 3 and 7 weeks. After 7 and 15 weeks bone repair was better in group I and II, in contrast with control cavities. Group I, II and control cavities had better bone repair after 15 weeks despite, although there was not complete bone repair in none of the groups

ASSUNTO(S)

ossos - enxerto odontologia coelho como animal de laboratorio cirurgia ossos - regeneração

ACESSO AO ARTIGO

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