Tecnología en Mecánica Dental

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Determinación de monómero residual en resinas dentales acrílicas
(Universidad Santiago de Cali, 2019) Patiño Meléndez, Pamela; Valencia Llanos, Carlos Humberto (Director)
Currently edentulous and partially edentulous patients are carriers of dental prostheses which are made by dental laboratories in a polymeric material containing methyl polymethacrylate, which has the possibility of “rebase”, is adding a new layer of acrylic, on top of the other, in order to allow this adhesion to occur, monomer particles must be left unattached to accommodate the new acrylic, this is what generates the residual monomer, which is gradually released and generates negative effects In the oral cavity of the patient such as allergic reactions, tissue reactions, subprotesic stomatitis as well as the proliferation of opportunistic fungi and bacteria. According to ISO 20795-2013, who studies dental acrylics, specifies for their manufacturers that the monomer should remain in a range of 2.2% to be tolerable. The way to determine and corroborate the amount of monometer that an acrylic has using gas chromatography.