Influence of Different Pigmentations and Accelerated Aging on the Hardness and Tear Strength of the A-2186 and MDX4-4210 Silicones.
Estefânia Marrega MalavaziDaniela Micheline Dos SantosClóvis Lamartine de Moraes Melo NetoFernanda Pereira de CaxiasEmily Vivianne Freitas da SilvaLisiane Cristina BannwartAldiéris Alves PesqueiraAndré Luiz de Melo MorenoAndré Pinheiro de Magalhães BertozMarcelo Coelho GoiatoPublished in: International journal of dentistry (2020)
In most situations, the A-2186 silicone showed significantly higher values of hardness and tear strength than the MDX4-4210 silicone. All hardness values were considered clinically acceptable. Accelerated aging could increase, decrease, or not significantly change the hardness and tear strength of the silicones used. The results of hardness and tear strength suggest that MDX4-4210 was more influenced by the presence of pigmentation after aging.
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