Objective: Compare the artificial teeth changes position in the maxillary total prosthesis at the time of pressing, by measuring at certain pre-determined reference points, under different types of pressure force of 800, 1 000 and 1 250 kg, using Type III gypsum (Whip Mix, USA®) and condensation silicone (Zhermack, Italy) as inclusion materials. Methods: 36 superior prostheses obtained from a plaster model of a single total edentulous patient were fabricated. The copies were randomly divided into 6 groups each with 6 repetitions, considering the involved variables, materials and evaluiated strength after press and process of being transformed in acrylic. The difference between the reference points was established by Autocad (21.2 version Autodesk, Spain). Results: significant difference was detected between silicone and gypsum at 1 000 force at 1% of significance level. Conclusions: Sta...

Objetivo: Comparar los cambios en la posición de los dientes artificiales en las prótesis totales maxilares al momento del prensado, mediante la medición en puntos de referencia pre determinados, bajo una fuerza de presión de 800, 1 000 y 1 250 kg, empleando yeso tipo III (Whip Mix, USA®) o silicona de condensación (Zhermack, Italia) como materiales de inclusión. Métodos: Fueron fabricadas 36 prótesis superiores obtenidas desde un modelo de yeso de un único paciente edéntulo total. Las réplicas fueron divididas de forma aleatoria en seis grupos, cada uno con seis repeticiones, considerando las variables involucradas, materiales y fuerza evaluada, tras el prensado y acrilizado. La diferencia entre los puntos referenciales fue establecida mediante Autocad (versión 21,2, Autodesk, España). Resultados: Se detectó una diferencia significativa entre la silicona y el yeso a 1 000...

Objective: Estimated the caries risk of children under 5 years of age in the urban area of the northern sector in Quito, Ecuador. Materials and methods: The sample consisted by 102 pairs; child and parents and / or representatives, who have been accepted a prior informed consent, they were subjected to the management of caries by risk assessment survey (CAMBRA) to determine the risk of presenting caries in their children. We were also done a clinical examination to assess the presence of caries and plaque. The data was compiled in an Excel table and were analyzed in SPSS program. Results: 60.8% of the minor participants belonging to the female gender. CAMBRA survey has a high-risk measure. Meanwhile, the clinical examination determined that the temporal teeth caries index was 4.62 with the presence of a plaque in 86% of the evaluated population. Conclusions: According to the survey, CAMB...