Cad Cam Systems
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Three-dimensional assessment of internal adaptation measurement of three cad/cam ceramic systems
Resumo Este estudo teve como objetivo avaliar a adaptação interna de três diferentes coroas cerâmicas CAD/CAM (Computer-aided design/computer-aided manufacturing). A adaptação interna de um material cerâmico de rede com infiltração de polímero (Vita Enamic [VE]) foi comparada com duas cerâmicas de vidro maquináveis; silicato de lítio reforçado
Brazilian Dental Journal. Publicado em: 2022
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2. Reliability of light microscopy and a computer-assisted replica measurement technique for evaluating the fit of dental copings
Abstract The aim of this in vitro study was to assess the reliability of two measurement systems for evaluating the marginal and internal fit of dental copings. Material and Methods: Sixteen CAD/CAM titanium copings were produced for a prepared maxillary canine. To modify the CAD surface model using different parameters (data density; enlargement in differe
J. Appl. Oral Sci.. Publicado em: 01/02/2018
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3. Dental ceramics: a review of new materials and processing methods
Abstract The evolution of computerized systems for the production of dental restorations associated to the development of novel microstructures for ceramic materials has caused an important change in the clinical workflow for dentists and technicians, as well as in the treatment options offered to patients. New microstructures have also been developed by the
Braz. oral res.. Publicado em: 28/08/2017
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4. Accuracy of intraoral and extraoral digital data acquisition for dental restorations
ABSTRACT The computer-aided design (CAD) and computer-aided manufacturing (CAM) process chain for dental restorations starts with taking an impression of the clinical situation. For this purpose, either extraoral digitization of gypsum models or intraoral digitization can be used. Despite the increasing use of dental digitizing systems, there are only few st
J. Appl. Oral Sci.. Publicado em: 2016-02
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5. Geração de b-splines via FPGA / B-spline generation via FPGA
The b-splines are used in CAD/CAM/CAE systems to represent and define complex curves and surfaces, being adopted by the main computer graphics standards due to features like compact mathematic representation, flexibility and affine transformations. In 3D acquisition systems and integrated CAM-CNC systems, the use of the b-spline in the geometric information
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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6. Contribuição para os usuários de sistemas CAD/CAM/CNC em operação de fresamento de topo em aço para moldes e matrizes / Contribution to the users of systems CAD/CAM/CNC in end milling operation in steel for molds and dies
The increased in the demand for plastic products and the need for reduction manufacturing times, and the growing dependence of man on the computer in present day, especially in manufacturing activities, has resulted in constant research of technological developments in order to supply these needs. In dies and molds manufacturing industry for plastic injectio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/06/2011
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7. Avaliação de métodos de instalação de implantes e prótese imediata definitiva que utiliza imagens de tomografia computadorizada e sistema computacionais CAD/CAM / Evaluation of a protocol for dental implant placement and immediate definitive prosthesis using computer tomography and CAD-CAM systems
Objetivos: Avaliar a precisão e as complicações do uso de guias cirúrgicas feitas por Sinterização Seletiva a Laser para a colocação de implante dentário sem retalho e a instalação imediata de prótese definitiva. Método: 62 implantes e 12 próteses imediatas definitivas foram instalados em 12 pacientes (8 mulheres e 4 homens) com idade média de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2011
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8. Influence of marginal fit and cement types on microleakage of all-ceramic crown systems
The purpose of this study was to evaluate the effects of both marginal fit and cementing with different luting agents on the microleakage of all-ceramic crown systems. Thirty-six extracted upper central incisors were prepared for full-coverage crowns and were divided into three groups. Group 1: CAD/CAM-fabricated ZrO2, Group 2: Heat-pressed lithium-disilicat
Brazilian Oral Research. Publicado em: 2011-06
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9. Possibilidades da produção artística via prototipagem rápida : processos CAD/CAM na elaboração e confecção de obras de arte e o vislumbre de um percurso poético individualizado neste ensaio / Possibilities of Art via Rapid Prototyping : using CAD/CAM systems to create art works and a glimpse of a poetic route individualized essay
Este trabalho apresenta uma pesquisa prática sobre o uso de tecnologias CAD/CAM com foco no uso de prototipagem rápida em Arte. O trabalho está organizado de modo a explicar a tecnologia empregada, apresentando uma seleção de principais artistas que se utilizam de PR para desenvolver suas obras. Por fim há uma produção poética pessoal, com a intenç
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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10. THE LIMITS OF INTELLECTUAL SUBSUMPTION LABOUR IN SOFTWARE PRODUCTION PROCESS / OS LIMITES DA SUBSUNÇÃO DO TRABALHO INTELECTUAL NO PROCESSO PRODUTIVO DE SOFTWARE
The principle of modern production is to combine modern production techniques, new knowledge, combined with increasingly sophisticated computerized development processes to increase production and processing continuous model itself. The Third Industrial Revolution, characterized by extreme specialization of intellectual labor and tendency to erase the border
Publicado em: 2010
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11. Proposta metodológica para modelagem geométrica a partir de imagens médicas
The great technological development in decades has brought changes of great importance in several areas of knowledge. In engineering, you can cite as one of those modifications to change the ideology and construction of mechanical projects, related to the emergence of CAD systems. In medicine, major changes have emerged with the advances offered by Radiology
Publicado em: 2008
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12. Conception of upper limbs myoelectrical prosthesis based on physiological study / Concepção de proteses mioeletricos de membros superiores baseado no estudo fisiologico
The goal of this work was to review the specialized literature for the development of technological applications connected with automation of myoelectrical prosthesis of upper limbs throughout the years, from World War 2 post-war solutions to the technology currently applied. The concept of myoelectrical prosthesis presupposes implies the acquisition and tre
Publicado em: 2008