Ospina Rosero, Jennifer LisbethJennifer LisbethOspina RoseroMartinez Jaramillo, Luisa FernandaLuisa FernandaMartinez JaramilloVivas Velasco, Dayana KarinaDayana KarinaVivas VelascoRiveros Baquero, Angela PatriciaAngela PatriciaRiveros BaqueroJaramillo Echeverry, AdrianaMartinez Cajas, Carlos HumbertoMurgüeitio, Rafael2025-06-272025-06-272022-02-17https://repositorio.unicoc.edu.co/handle/SII-Unicoc/694Background. Definitive impressions are a routine dental rehabilitation procedure and are made up of several steps that determine the success of the treatment. One of these steps is the successful selection of the impression tray. The use of digitally designed and manufactured trays has recently been proposed, in addition to the use of an intraoral scanner, but few studies evaluate this new technique compared to the traditional method with standard trays. Objective. Compare errors that occur in impression-based casts with standard trays, digitally designed individual trays with and without stops, and digital impressions Methods. An in vitro observational study with an analytical approach was carried out in which they evaluated the impressions of a master model obtained from standard trays and individualized trays digitally designed, and 3D printed with CAD / CAM technique (n = 10). Errors in impressions associated with the tray were accounted for. Data were collected in a database and group comparisons were made in the STATA package using the Kruskal Wallis test and the post-test with Dunn's test between pairs with 95% confidence. Results. The surface analysis indicates that the digital impressions in STL models did not present errors, on the other hand, the affectation of RDI in 32 places for models obtained with standard trays while, for the remaining models, the number was less than 12 and 13 in models of buckets with stops and without stops respectively. Surfaces with the greatest involvement were the lingual with 36.84%, the vestibular with 31.58% and the occlusal with 21.05%. Conclusions. The impressions obtained from the digital scanner did not show defects, the individual trays digitally designed and printed based on CAD / CAM technology presented fewer errors, individual trays with 21.05% stops, individual trays without stops 22.81% and standard trays 56,14%.Las impresiones definitivas son un procedimiento rutinario de la rehabilitación dental y está compuesto por varios pasos que determinan el éxito del tratamiento. Uno de estos pasos es la selección acertada de la cubeta para impresión. Recientemente se ha propuesto el uso de cubetas diseñadas y fabricadas digitalmente, además del uso de escáner intraoral, pero son pocos los estudios que evalúan esta nueva técnica en comparación con el método tradicional con cubetas estándar. Objetivo. Comparar los errores que se presentan en los modelos obtenidos a partir de impresiones con las cubetas estándar, cubetas individuales diseñadas digitalmente con y sin topes, e impresiones digitales. Métodos. Se realizó un estudio descriptivo in vitro con enfoque analítico en el que evaluaron las impresiones obtenidas a partir de un modelo tipodonto, con cubetas estándar y cubetas individualizadas con y sin topes diseñadas digitalmente e impresas en 3D con técnica de CAD/CAM (n=10) y se evaluaron 10 modelos STL obtenidos a través de escáner intraoral. Se tuvieron en cuenta los errores en las impresiones asociados con la cubeta. Los datos se recolectaron en una base de datos y se hizo comparación de grupos en el paquete STATA mediante la prueba Kruskal Wallis y la postprueba con el test de Dunn entre pares con una confianza del 95%.26 pp.application/pdfesimpresiones dentalescubetas para impresiónsiliconamateriales dentalesdefectos de impresiónInvestigación de campotext::journal::journal article::research articleTRO 13Impression traysdental impressionsiliconedental materialprint defectsopenAccess