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Cientistas acreditam que desenvolvimento de droga será facilitado, já que a aspirina é uma droga licenciada (Foto: Food and Drug Administration/Divulgação) Cientistas acreditam que desenvolvimento de droga será facilitado, já que a aspirina é uma droga licenciada (Foto: Food and Drug Administration/Divulgação)

Cientistas na Irlanda do Norte afirmam ter desenvolvido um tratamento de regeneração dental que usa o ácidoacetilsalicílico, substância comercialmente conhecida como aspirina.

Pesquisadores da Universidade Queen's, em Belfast, usaram o produto para estimular células-tronco nos dentes, o que aumentou o potencial de regeneração. Eles acreditam que o tratamento com aspirina pode resultar em menos cáries e obturações no futuro.

Na Irlanda do Norte, 72% dos adolescentes de 15 anos tinham cáries em 2016, de acordo com um estudo da Associação Odontológica Britânica.

Nossos dentes têm capacidade limitada de regeneração. Produzem uma camada fina de dentina, logo abaixo do esmalte, se a polpa dental é exposta, mas não conseguem consertar uma grande cavidade.

É por isso que dentistas usam obturações, que podem necessitar de substituição várias vezes durante a vida do dente.

Mas Ikhlas El Karim, professora da Faculdade de Medicina da Queen's University, cujas pesquisas giram em torno do uso de células-tronco, diz ter descoberto que a aspirina "turbina" essas células no processo de regeneração.

Depois de analisar dados de pesquisas anteriores, a equipe da Queen's University usou aspirina líquida sobre células-tronco em uma placa de Petri e diz ter encontrado "evidências materiais e genéticas de que isso produziu dentina".

Mas, segundo Ikhlas, o próximo passo é descobrir um método para aplicar a aspirina no dente de forma adequada.

"Precisamos colocar o produto (no dente cariado) de forma que possa ser liberado durante um longo período de tempo. Se simplesmente colocarmos aspirina em uma cárie hoje, ela será facilmente lavada."

"Não estamos encorajando esse uso simplório, mas sim o de um produto final para ser usado por um dentista, não um paciente", acrescenta a cientista.

Mas Ihklas ressalta que o fato de a aspirina já ser uma droga disponível no mercado ajudará o desenvolvimento de um tratamento.

"Não precisaremos de 10 ou 20 anos para fazer testes clínicos. Há imenso potencial para mudarmos a forma como abordamos um dos maiores desafios odontológicos que temos."

"E esse método não só aumenta a sobrevivência dos dentes, mas pode resultar em uma imensa economia para sistemas de saúde pública ao redor do mundo."

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