Publication: Estudio in vitro de diversos factores clínicos que influyen en la precisión y comportamiento de uso de seis escáneres intra-orales con distinta tecnología en impresiones sobre múltiples implantes
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2018-01-09
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Universidad Complutense de Madrid
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Abstract
La tecnología digital avanza rápidamente en la industria dental. Los sistemas digitales, automatizando los diferentes pasos del proceso de trabajo, están convirtiendo lo que anteriormente eran tareas manuales, en pasos más fáciles, rápidos, económicos y predecibles. Con la introducción de los nuevos modelos de escáneres intra-orales el clínico tiene la posibilidad de tomar una impresión digital y enviar dicho archivo digitalizado directamente al laboratorio. Por lo tanto, se reduce el número de pasos y se minimizan los errores potenciales derivados de los métodos manuales convencionales. Los indicadores principales de la calidad de los sistemas de impresión digital son la precisión y exactitud. Justificación La idea de una completa sustitución de las impresiones convencionales por las impresiones digitales se está encontrando con varios obstáculos, ya que diferentes factores parecen afectar la precisión y exactitud de las mismas. Hasta el momento, el conocimiento acerca de estos factores es insuficiente. Para poder entender las indicaciones clínicas reales. las potenciales aplicaciones y predictibilidad de los escáneres intra-orales, se requiere entre otras variables, un mayor conocimiento sobre la exactitud y precisión de las distintas tecnologías y los factores que afectan a dichos resultados. Objetivos Los objetivos planteados en este estudio fueron: (1) analizar la precisión y exactitud de 6 escáneres intra-orales basados en diferentes tecnologías considerando el efecto de (2) distancia o cuadrante escaneado, (3) experiencia del operador, (4) inclinación del implante, (5) profundidad del implante o porción visible del pilar de escaneado y (6) el efecto de la variable “software” en los STL obtenidos con el mismo OEM (Original Equipment Manufacturing)...
Digital technology is advancing fast in the dental industry. The digital systems, by automating the different steps of the workflow, are making what were previously manual tasks easier, faster, cheaper and more predictable. With the introduction of new intra-oral scanners the clinician can take a digital impression and send it directly to the laboratory. Therefore, the time needed and the steps of the fabrication process are reduced, and potential errors from the conventional manual methods are minimized. Accuracy and precision stand as the main indicators of the quality of the digital impression systems. Justification The idea of complete replacement of conventional impressions with the intra-oral scanners is meeting a number of obstacles, as several factors seem to be affecting the accuracy. At present, knowledge regarding these factors is deficient. In order to understand the actual clinical indications of use and potential applications of the intraoral scanners and their predictability, further knowledge regarding the accuracy and precision of the different scanning technologies and the factors that affect them would be required. Objectives The objectives of this study therefore were to (1) analyze the accuracy and precision of 6 different intra-oral scanners based on different technologies considering the effect of (2) scanned distance or quadrant, (3) operator experience, (4) implant-angulation, (5) implant-depth and (6) the effect of the variable “software” on the STL files obtained from the same OEM (Original Equipment Manufacturer)...
Digital technology is advancing fast in the dental industry. The digital systems, by automating the different steps of the workflow, are making what were previously manual tasks easier, faster, cheaper and more predictable. With the introduction of new intra-oral scanners the clinician can take a digital impression and send it directly to the laboratory. Therefore, the time needed and the steps of the fabrication process are reduced, and potential errors from the conventional manual methods are minimized. Accuracy and precision stand as the main indicators of the quality of the digital impression systems. Justification The idea of complete replacement of conventional impressions with the intra-oral scanners is meeting a number of obstacles, as several factors seem to be affecting the accuracy. At present, knowledge regarding these factors is deficient. In order to understand the actual clinical indications of use and potential applications of the intraoral scanners and their predictability, further knowledge regarding the accuracy and precision of the different scanning technologies and the factors that affect them would be required. Objectives The objectives of this study therefore were to (1) analyze the accuracy and precision of 6 different intra-oral scanners based on different technologies considering the effect of (2) scanned distance or quadrant, (3) operator experience, (4) implant-angulation, (5) implant-depth and (6) the effect of the variable “software” on the STL files obtained from the same OEM (Original Equipment Manufacturer)...
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Tesis inédita de la Universidad Complutense de Madrid de la Facultad de Odontología. Departamento de Estomatología I, leída el 21-06-2017