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Elevação do seio maxilar com colocação imediata dos implantes
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Abstract(s)
A cirurgia de levantamento do seio maxilar apresenta-se como uma alternativa para a reabilitação de maxilas atróficas na sua porção posterior. A técnica da janela lateral permite recriar um volume ósseo subantral, pela interposição de um material de enxerto para alturas ósseas muito reduzidas, em que o objetivo é o de regenerar osso vivo no qual os implantes poderão se osteo-integrar. Evidências clínicas recentes sugerem que a colocação de implantes simultaneamente pode apresentar elevadas taxas de sucesso desde que seja garantida a estabilidade primária adequada, que pode ser influenciada por a densidade e alturas do osso residual, e como fatores relacionados com características geométricas dos implantes e da técnica cirúrgica. O biomaterial usado durante a elevação do seio maxilar desempenharia essencialmente um papel mecânico como mantenedor do espaço, a fim de estabilizar a membrana sinusal numa posição elevada. A colocação de implantes, simultâneo com a elevação da membrana, permitiria desempenhar um papel de mantenedor do espaço e o coágulo de sangue formado, e permitiria a formação óssea no espaço sub-sinusal criado.
Maxillary sinus lifting surgery is an alternative for the rehabilitation of atrophic maxilla in its posterior portion. The technique of the side window allows to recreate a subantral bone volume, by interposing a graft material for very reduced bone heights, in which the objective is to regenerate living bone in which the implants can be osteo-integrated. Recent clinical evidence suggests that simultaneous implant placement can have high success rates as long as adequate primary stability is ensured, which can be influenced by the density and heights of the residual bone, and as factors related to the geometrical characteristics of the implants and the surgical technique. Biomaterials used during maxillary sinus elevation would essentially play a mechanical role as a space maintainer in order to stabilize the sinus membrane in the upper position. The placement of implants, simultaneously with the elevation of the membrane, would allow for a role as a space maintainer and the blood clot formed would allow for the promotion of bone in the sub-sinusal space created.
Maxillary sinus lifting surgery is an alternative for the rehabilitation of atrophic maxilla in its posterior portion. The technique of the side window allows to recreate a subantral bone volume, by interposing a graft material for very reduced bone heights, in which the objective is to regenerate living bone in which the implants can be osteo-integrated. Recent clinical evidence suggests that simultaneous implant placement can have high success rates as long as adequate primary stability is ensured, which can be influenced by the density and heights of the residual bone, and as factors related to the geometrical characteristics of the implants and the surgical technique. Biomaterials used during maxillary sinus elevation would essentially play a mechanical role as a space maintainer in order to stabilize the sinus membrane in the upper position. The placement of implants, simultaneously with the elevation of the membrane, would allow for a role as a space maintainer and the blood clot formed would allow for the promotion of bone in the sub-sinusal space created.
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Keywords
Elevação do seio maxilar Implantes dentários Técnica lateral Implantação simultânea Estabilidade primária Enxertos ósseos Maxillary sinus elevation Dental implants Lateral technique Simultaneous implantation Primary stability Bone grafts