Influência dos efeitos de uma superfície de implante revestida com fosfato de cálcio na resposta óssea: análise biomecânica e topográfica

• Autor(a) principal: Dias, Janaina Teixeira [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/149688; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-01-31/000867798.pdf
• topic: Implantes dentários; Cálcio; Titânio; Fosfatos de cálcio; Dental implants

Topographic and physico-chemical surface modifications of implants have been proposed to increase the percentage of bone-implant contact, particularly in bone tissue areas of lower density, promote biological responses in a shorter period of regeneration and hence promote long-term success of dental implants. The objective of this study is to evaluate the surfaces of commercially pure titanium implants (Ticp) with machined surface with and without calcium phosphate deposition (CaP) by the method similar to biomimetic and evaluate the bone / implant interface in standardized model in rat tibia . Analyzes were performed topographic (MEV and EDS) and biomechanics through the completion of reverse torque. 32 machined surface implants and 32 implants with modified surface CaP base in tibial metaphyseal animals have been installed. In topographical analysis showed that the modified surface group CaP base produced rougher surfaces and homogeneous and the EDS showed no contamination in both groups. Biomechanical analysis showed a statistically significant difference (p <0.05) was observed at 30 days and 40 days, between the GUS and GFO groups (Mann-Whitney test, 5% significance level). It was concluded that the surface modified by CaP favored the interaction between bone and implant tissue as shown by reverse torque values at 30 and 40 days statistically superior in GFO group