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ResumenEn la actualidad se están desarrollando técnicas alternativas para la fabricación en tiempos cortos de prótesis totales en relación con la utilización de diferentes materiales para la base de dentadura. El propósito de este estudio fue comparar la deflexión transversa entre materiales a base de polímeros, propuestos como una alternativa a los materiales comúnmente utilizados para realizar una prótesis total en forma convencional. Se probaron resina acrílica termocurable, resina acrílica autocurable, láminas de acetato calibre 60 y 80 recubiertas con resina acrílica autocurable, resina acrílica fluida y resina fotopolimerizable para base de dentadura. Se fabricaron diez muestras de 65×10×2.5mm de cada material. Las muestras se colocaron en agua a 37°C por 50 horas, se midió la deflexión transversa y se analizaron los resultados por análisis de varianza (ANOVA) de una vía. Los resultados mostraron que hubo diferencia estadísticamente significativa entre los grupos. Las láminas de acetato recubiertas con acrílico autocurable pueden ser una alternativa para la rápida fabricación de bases de dentadura de uso temporal.AbstractNowadays, alternative techniques are being developed for short-time manufacturing of full prostheses, entailing different materials for the denture base. The purpose of the present study was to compare transverse deflection among polymer-based materials currently proposed as an alternative to materials commonly used to conventionally manufacture a full prosthesis. For the denture base the following materials were tested: thermo-cured (setting) acrylic resin, self-cured acrylic resin, 60 and 80 gauge acetate sheets coated with self-cured acrylic resin, liquid (fluid) acrylic resin as well as light-cured resin. Ten 65×10×2.5mm samples of each material were manufactured. The samples were placed in water at 37°C for 50 hours. Transverse deflection was measured and results were analyzed with the help of one-way analysis of variance (ANOVA). Results exhibited statistically significant differences among groups. Acetate sheets coated with self-cured acrylic could represent an alternative for the rapid manufacturing of temporary denture basis

Deflexión transversa de materiales alternativos a base de polímeros para fabricación de base de dentadura