Tecnología en Mecánica Dental
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Browsing Tecnología en Mecánica Dental by Subject "Acrylic Resins"
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Item 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.Item Revisión literaria de efectos estructurales en resinas acrílicas de termo curado sometidas a diferentes temperaturas durante su cocción(Universidad Santiago de Cali, 2024) Narváez Cerón, Diana Camila; Guaca Ijaji, Eliana; Zambrano Grajales, Diego Fernando (Director)Acrylic resins are one of the most frequented products in the dental laboratory, so its use is constant with its activator in total, removable or partial prosthesis, and to which in this work we will give a view of what is its maximum temperature, thus giving a manual for good management, we look for that perfection of temperature that what it does is to be able to help students and technicians to know why their acrylic has negative effects or which is one of the reasons that could have affected the result, thus giving a negative result, among other things to get to know what is its ideal temperature, since different populations can be benefited, and thus be able to know what type of technique and what type of temperature should be for its polymerization of (PMMA). The polymerization of the material is an exothermic process, which can reach temperatures over 100 °C, this is a process on the biomaterials that in this case is the thermo polymerization acrylic, since this case will be evaluated by means of bibliographic reviews giving certainty and thus confirming how is its process and its handling.