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Advisor(s)
Abstract(s)
O sucesso da terapia com implantes depende da obtenção de uma posição tridimensional ideal do implante, dentro das dimensões ósseas disponíveis, com o
objetivo de alcançar um perfil de emergência adequado à restauração final, sendo o apoio ósseo fundamental.
Portanto, o conhecimento dos mecanismos de reabsorção óssea pós-extração é essencial para o planeamento do tratamento.
Existem e são descritas diferentes estratégias de preservação do rebordo ósseo
para minimizar a reabsorção óssea após a extração dentária e otimizar a disponibilidade
de volume ósseo, bem como reduzir a necessidade de procedimentos de aumento ósseo.
Mas os defeitos podem ser tão severos que a colocação do implante pode ser difícil
ou impossível sem o uso de procedimentos de regeneração óssea.
O aumento ósseo prévio ou simultâneo com a colocação do implante pode permitir
uma melhor posição do implante.
Se após o diagnóstico o defeito tiver sido classificado, será mais fácil selecionar a técnica cirúrgica mais apropriada para tratar o defeito. Os métodos atuais mais eficazes
para modelar a arquitetura óssea essencial para apoiar a reabilitação do implante têm em conta a extensão da insuficiência óssea, bem como sua situação anatómica. Muitas
técnicas foram descritas para o aumento do rebordo ósseo: aposição óssea de enxerto,
regeneração óssea guiada, distração e expansão da crista.
As principais técnicas serão descritas com o objetivo de definir os benefícios e limitações de cada uma, de comparar a sua eficiência, e orientar o clínico para a técnica cirúrgica mais adequada para cada caso.
The success of implant therapy depends on obtaining an ideal three-dimensional position of the implant within the available bone dimensions in order to achieve a suitable emergency profile for the final restoration; bone support is critical. Therefore, knowledge of the mechanisms of post-extraction bone resorption is essential for treatment planning. There are different bone preservation strategies described to minimize bone resorption after tooth extraction and optimize bone volume availability, as well as reduce the need for bone augmentation procedures. But defects can be so severe that implant placement can be difficult or impossible without the use of bone regeneration procedures. Bone augmentation before or simultaneously with implant placement may allow a better implant position. Once a defect has been classified following the diagnosis, it will be easier to select the most appropriate surgical technique to treat the defect. Currently the most effective methods for modeling the essential bone architecture to support implant rehabilitation take into account the extent of bone insufficiency as well as its anatomical situation. Many techniques have been described to increase the bony ridge: bone graft apposition, guided bone regeneration, distraction, ridge expansion. The main techniques will be described, with the objective of defining the benefits and limitations of each technique and comparing their efficiency. In order to guide the practitioner to the most suitable surgical technique for each case.
The success of implant therapy depends on obtaining an ideal three-dimensional position of the implant within the available bone dimensions in order to achieve a suitable emergency profile for the final restoration; bone support is critical. Therefore, knowledge of the mechanisms of post-extraction bone resorption is essential for treatment planning. There are different bone preservation strategies described to minimize bone resorption after tooth extraction and optimize bone volume availability, as well as reduce the need for bone augmentation procedures. But defects can be so severe that implant placement can be difficult or impossible without the use of bone regeneration procedures. Bone augmentation before or simultaneously with implant placement may allow a better implant position. Once a defect has been classified following the diagnosis, it will be easier to select the most appropriate surgical technique to treat the defect. Currently the most effective methods for modeling the essential bone architecture to support implant rehabilitation take into account the extent of bone insufficiency as well as its anatomical situation. Many techniques have been described to increase the bony ridge: bone graft apposition, guided bone regeneration, distraction, ridge expansion. The main techniques will be described, with the objective of defining the benefits and limitations of each technique and comparing their efficiency. In order to guide the practitioner to the most suitable surgical technique for each case.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Regeneração óssea Local implantar Aumento ósseo Enxerto ósseo
