Análise morfológica e elementar da superfície de uma vitrocerâmica implantada em calvária de rato utilizando MEV e EDX
DOI:
https://doi.org/10.53660/PRW-2541-4557Palavras-chave:
Vitrocerâmica, Microscopia eletrônica de varredura, Espectroscopia de raios XResumo
O objetivo deste estudo foi analisar a morfologia da superfície e a composição elementar de uma vitrocerâmica desenvolvida com diferentes proporções de wollastonita (W) e fosfato tricálcico (TCP) implantada em calvária de rato. A vitrocerâmica foi preparada com mistura de pós de W e TCP em proporções (W%/TCP%) iguais a 20/80%, 60/40% e 80/20%, seguida de sinterização e processamento para obtenção de grânulos com tamanhos entre 400 e 600 μm, que foram implantados em calvária de rato, e analisado nos pontos biológicos de 7, 15 e 45 dias após a implantação. Para análise morfológica, as amostras foram micrografadas em microscópio eletrônico de varredura (MEV) e analisadas no software ImageJ. A análise elementar foi realizada utilizando espectroscopia de energia dispersiva de raios X (EDX). Os resultados demonstraram que as diferentes proporções de W e TCP promoveram diferentes modificações na microestrutura da vitrocerâmica remanescente ao longo dos pontos biológicos, além de apresentarem diferentes concentrações de O, Si, Ca e P. Conclui-se que as diferentes proporções de W e TCP conferiram à vitrocerâmica diferentes comportamentos de biodegradabilidade após implantação em sitio ósseo.
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