Digora
Mostrando 1-12 de 59 artigos, teses e dissertações.
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1. Pixel value analysis for detection of simulated early external root resorption
The aim of this study was to determine the efficacy of pixel value analysis using images generated by the Digora™ and Visualix™ systems for the early detection of external root resorption (ERR). Thirty extracted human lower incisors were radiographed using the Digora and Visualix systems; then, ERR was induced by immersing the teeth in 6 mol L-1 of hydro
Braz. oral res.. Publicado em: 15/09/2014
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2. Performance of digital radiography with enhancement filters for the diagnosis of proximal caries
Enhancement filters are potentially supposed to improve the diagnostic performance of digital images. Thus, the aim of this study was to compare the performance of digital radiography with and without enhancement filters for the detection of induced proximal caries lesions. The total sample consisted of 120 sound human teeth (40 premolars, 80 molars). Enamel
Braz. oral res.. Publicado em: 2013-06
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3. Precisão de medidas lineares na odontometria através de localizador foraminal eletrônico, radiografia convencional e digital / Accuracy of linear measurements in dental locator through foraminal eletronic, conventional radiography and digital
Para o sucesso do tratamento endodôntico é fundamental a determinação do comprimento real de trabalho através de métodos confiáveis e precisos. Os objetivos desse trabalho foram: comparar, qualitativamente, radiografias convencionais com as digitais, com e sem manuseio das ferramentas do programa do Digora 2.5; avaliar a precisão in vivo de um modelo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/04/2012
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4. In vivo accuracy of conventional and digital radiographic methods in confirming root canal working length determination by Root ZX
OBJECTIVES: To compare, in vivo, the accuracy of conventional and digital radiographic methods in determining root canal working length. MATERIAL AND METHODS: Twenty-five maxillary incisor or canine teeth from 22 patients were used in this study. Considering the preoperative radiographs as the baseline, a 25 K file was inserted into the root canal to the poi
J. Appl. Oral Sci.. Publicado em: 2012-10
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5. Physicochemical properties of endodontic sealers of different bases
OBJECTIVE: To assess the setting time (ST), flow (FL), radiopacity (RD), solubility (SB) and dimensional change following setting (DC) of different sealers (AH Plus®, Polifil, Apexit Plus®, Sealapex®, Endométhasone® and Endofill®) according to American National Standards Institute/American Dental Association (ANSI/ADA) Specification 57. MATERIAL AND ME
J. Appl. Oral Sci.. Publicado em: 2012-08
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6. Alveolar bone healing process in spontaneously hypertensive rats (SHR): A radiographic densitometry study
Hypertension is one of the most important public health problems worldwide. If undiagnosed or untreated, this pathology represents a systemic risk factor and offers unfavorable conditions for dental treatments, especially those requiring bone healing. Objectives: The purpose of this study was to demonstrate, by analysis of bone mineral density (BMD), that th
Journal of Applied Oral Science. Publicado em: 2012-04
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7. Estudo in vitro dos níveis radiográficos de cinza de biomateriais utilizando duas modalidades de imagem digital
OBJETIVO: Comparar os métodos radiográficos direto e indireto para avaliar os níveis de cinza de biomateriais empregando os sistemas Digora for Windows e Adobe Photoshop CS2. MÉTODOS: corpos de prova confeccionados com biomateriais foram posicionados numa película radiográfica e numa placa de fósforo com protetor para a realização de exposições ra
Rev. odonto ciênc.. Publicado em: 2012
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8. Diagnóstico radiográfico de cárie induzida artificialmente utilizando imagens de tomografia computadorizada de feixe cônico e radiografia digital com a aplicação de filtros de realce / Radiographic diagnosis of artificial caries using cone beam computed tomography and digital radiography with filter application
A realização deste trabalho teve por objetivos avaliar a acurácia das imagens por tomografia computadorizada de feixe cônico (TCFC) e de radiografias digitais no diagnóstico de lesões de cárie proximais experimentalmente induzidas, bem como a aplicabilidade dos filtros de realce. Para tanto, foram selecionados 120 dentes, sendo 40 dentes pré-molares
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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9. Assessment of enamel-dentin caries lesions detection using bitewing PSP digital images
OBJECTIVES: The aim of this study was to evaluate the detection of enamel-dentin occlusal caries using photostimulable phosphor plates. MATERIAL AND METHODS: The ability to detect enamel-dentin occlusal caries in 607 premolars and molars from 47 patients between 10 and 18 years old, referred to the School of Dentistry of the Federal University of Bahia, Braz
Journal of Applied Oral Science. Publicado em: 2011-10
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10. Radiological and histopathological evaluation of experimentally-induced periapical lesion in rats
OBJECTIVE: This study evaluated experimentally-induced periapical bone loss sites using digital radiographic and histopathologic parameters. MATERIAL AND METHODS: Twenty-seven Wistar rats were submitted to coronal opening of their mandibular right first molars. They were radiographed at 2, 15 and 30 days after the operative procedure by two digital radiograp
Journal of Applied Oral Science. Publicado em: 22/07/2011
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11. Radiopacity evaluation of Portland and MTA-based cements by digital radiographic system
OBJECTIVE: The aim of the present study was to evaluate the radiopacity of Portland and MTA-based cements using the Digora TM digital radiographic system. MATERIAL AND METHODS: The performed tests followed specification number 57 from the American National Standard Institute/American Dental Association (2000) for endodontic sealing materials. The materials w
Journal of Applied Oral Science. Publicado em: 2011-06
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12. Influence of powder/liquid ratio on the radiodensity and diametral tensile strength of glass ionomer cements
Clinicians tend to make reductions in glass ionomer power/liquid (P/L) ratios since some materials are difficult to mix and flow into small cavities, grooves or pits. In general, changing the P/L ratio decreases the physical and mechanical properties of conventional glass ionomer cements (GICs) and resin modified glass ionomer cements (RMGICs), but alteratio
Journal of Applied Oral Science. Publicado em: 2010-12