Publication: Estudio in vitro de una silicona vinil polieter como nuevo material de impresión
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2018-10-24
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Universidad Complutense de Madrid
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Abstract
La toma de impresiones es uno de los pasos claves para obtener modelos precisos y por tanto éxito en cualquier tipo de prótesis dental. No solo es imprescindible conocer las técnicas de impresión si no también los materiales para facilitar su elección y manipulación. Los materiales más comúnmente empleados son la silicona de adición y el poliéter por sus excelentes propiedades. La silicona de adición posee una notable recuperación elástica y estabilidad dimensional, por lo que reproduce con éxito el detalle, pero son de naturaleza hidrófoba lo cual influye negativamente en su fluidez.El poliéter por el contrario se comporta mejor bajo condiciones de humedad pero es un material muy rígido una vez polimerizado. La reciente incorporación en el mercado de materiales híbridos entre una silicona de adición y un poliéter, los vinil poliéter siloxanos, podría aportar las ventajas de ambos y solventar sus desventajas...
The dental impression process is one of the keyelements in obtaining precise dental models, as well as, producingsuccessful dental prostheses. It’s not only essential to know the differentimpression techniques, but also the different materials, in order to aid intheir selection and use. Addition silicone (AS) and polyether (PE) arecommonly used for this purpose due to their excellent properties. ASpossesses a notably high elastic recovery and dimensional stability,providing successful detail; however, its hydrophobic nature has anegative impact on its flow. Polyether, on the contrary, has a betterbehaviour under humid conditions but becomes too rigid whenpolymerized. Recent additions to the market of hybrids materials, halfAS, half PE, such as vinyl polyether siloxane, could offer the advantagesof both products, while eliminating their disadvantages...
The dental impression process is one of the keyelements in obtaining precise dental models, as well as, producingsuccessful dental prostheses. It’s not only essential to know the differentimpression techniques, but also the different materials, in order to aid intheir selection and use. Addition silicone (AS) and polyether (PE) arecommonly used for this purpose due to their excellent properties. ASpossesses a notably high elastic recovery and dimensional stability,providing successful detail; however, its hydrophobic nature has anegative impact on its flow. Polyether, on the contrary, has a betterbehaviour under humid conditions but becomes too rigid whenpolymerized. Recent additions to the market of hybrids materials, halfAS, half PE, such as vinyl polyether siloxane, could offer the advantagesof both products, while eliminating their disadvantages...
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Tesis inédita de la Universidad Complutense de Madrid de la Facultad de Odontología. Departamento de Estomatología I, leída el 30-06-2017