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Comparação da capacidade de selagem bacteriana da conexão cone Morse com o hexágono interno
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A capacidade de selagem bacteriana das conexões de implantes dentários é crucial para o sucesso a longo prazo dos implantes. Esta revisão compara a selagem bacteriana de duas conexões amplamente utilizadas de implante-pilar: o cone Morse e o hexágono interno, com foco na eficácia em prevenir a microinfiltração, que pode levar à peri-implantite e à falha do implante.
A conexão cone Morse, com a sua interface cónica, é conhecida pela estabilidade mecânica e selagem devido ao mecanismo de bloqueio por fricção. No entanto, o Hexágono Interno, com seu design de interbloqueio hexagonal, é preferido pela facilidade de uso e precisão de alinhamento.
Estudos indicam que a conexão cone Morse tem resistência superior à penetração bacteriana, com menos incidências de microinfiltração em comparação com o Hexágono Interno. Isso é atribuído ao design cónico, que cria uma selagem mais justa, minimizando o microespaço na interface implante-pilar. Além disso, a Conexão Cone Morse apresenta menores concentrações de stress na interface sob carga, contribuindo para seu desempenho superior de selagem.
A selagem superior da Conexão Cone Morse pode reduzir a incidência de peri-implantite, aumentando a longevidade e as taxas de sucesso dos implantes dentários. No entanto, a facilidade de manuseio e alinhamento do Hexágono Interno sugere que a escolha da conexão deve ser adaptada aos cenários clínicos específicos e à preferência do profissional.
Esta revisão apresenta evidências que apoiam a superior capacidade de selagem da Conexão Cone Morse em relação ao Hexágono Interno. Pesquisas futuras devem focar-se em ensaios clínicos a longo prazo para validar estas descobertas.
A pesquisa incluiu uma revisão bibliográfica do acervo bibliográfico do IUEM de livros, periódicos e artigos académicos, seguida por uma pesquisa online utilizando PubMed, Cochrane, SciELO e Google Scholar.
The sealing ability of dental implant connections is crucial for the long-term success of implant-supported restorations. This review compares the sealing capacity of two common implant-abutment connections: the Morse Taper and the Internal Hexagon, focusing on their efficacy in preventing microleakage, which can lead to peri-implantitis and implant failure. The Morse Taper Connection, characterized by its conical interface, is known for its mechanical stability and sealing properties due to its friction-fit locking mechanism. In contrast, the Internal Hexagon, with its hexagonal interlocking design, is traditionally favored for its ease of use and alignment accuracy during the prosthetic phase. Studies indicate that the Morse Taper Connection demonstrates superior resistance to bacterial penetration, with fewer instances of microleakage compared to the Internal Hexagon. This is attributed to the conical design's ability to create a tighter seal under load, minimizing the microgap at the implant-abutment interface. Additionally, the Morse Cone connection presents lower stress concentrations at the interface under simulated physiological conditions, contributing to its enhanced sealing performance. The superior sealing ability of the Morse Taper Connection can potentially reduce the incidence of peri-implantitis, thereby increasing the longevity and success rates of dental implants. However, the ease of handling and alignment offered by the Internal Hexagon suggests that the choice of connection type should be tailored to specific clinical scenarios and practitioner preferences. This review supports the superior sealing ability of the Morse Taper Connection over the Internal Hexagon. Future research should focus on long-term clinical trials to validate these findings and explore hybrid designs that combine the advantages of both connection types. The research included a bibliographic survey in the IUEM library collection of books, periodicals, and academic papers, followed by an online search using PubMed, Cochrane, SciELO, and Google Scholar.
The sealing ability of dental implant connections is crucial for the long-term success of implant-supported restorations. This review compares the sealing capacity of two common implant-abutment connections: the Morse Taper and the Internal Hexagon, focusing on their efficacy in preventing microleakage, which can lead to peri-implantitis and implant failure. The Morse Taper Connection, characterized by its conical interface, is known for its mechanical stability and sealing properties due to its friction-fit locking mechanism. In contrast, the Internal Hexagon, with its hexagonal interlocking design, is traditionally favored for its ease of use and alignment accuracy during the prosthetic phase. Studies indicate that the Morse Taper Connection demonstrates superior resistance to bacterial penetration, with fewer instances of microleakage compared to the Internal Hexagon. This is attributed to the conical design's ability to create a tighter seal under load, minimizing the microgap at the implant-abutment interface. Additionally, the Morse Cone connection presents lower stress concentrations at the interface under simulated physiological conditions, contributing to its enhanced sealing performance. The superior sealing ability of the Morse Taper Connection can potentially reduce the incidence of peri-implantitis, thereby increasing the longevity and success rates of dental implants. However, the ease of handling and alignment offered by the Internal Hexagon suggests that the choice of connection type should be tailored to specific clinical scenarios and practitioner preferences. This review supports the superior sealing ability of the Morse Taper Connection over the Internal Hexagon. Future research should focus on long-term clinical trials to validate these findings and explore hybrid designs that combine the advantages of both connection types. The research included a bibliographic survey in the IUEM library collection of books, periodicals, and academic papers, followed by an online search using PubMed, Cochrane, SciELO, and Google Scholar.
Descrição
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Palavras-chave
Cone Morse Hexágono interno Selagem bacteriana Microinfiltração