Irradiation Procedures
Mostrando 1-12 de 86 artigos, teses e dissertações.
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1. Effect of laser treatment on postural control parameters in patients with chronic nonspecific low back pain: a randomized placebo-controlled trial
The management of nonspecific lumbar pain (NSLP) using laser irradiation remains controversial. A systematic review of recently published studies indicates that the effects of laser therapy are commonly assessed using only imperfect methods in terms of measurement error. The main objective of this study was to assess static postural stability using an object
Braz J Med Biol Res. Publicado em: 25/11/2019
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2. RADIOACTIVE CEMENT OF PMMA AND HAP-Sm-153, Ho-166, OR RE-188 FOR BONE METASTASIS TREATMENT
RESUMO Polymethylmetacrylte (PMMA) é um composto utilizado na indústria e desde os anos 80's também tem sido empregado nas áreas odontológica e biomédica como constituinte de cimentos ósseos. A hydroxyapatite (HAp) é uma biocerâmica produzida naturalmente nos ossos. Esses dois componentes são constituintes fundamentais no preparo de cimentos ósseo
Acta ortop. bras.. Publicado em: 2019-02
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3. FTIR study of aquamarines after gamma irradiation, heat treatment and electrodiffusion
Abstract Beryl, Be3Al2(SiO3)6, is a natural gemstone with many colors. Some of these colors can be induced or modified by exposure to ionizing radiation, by heating, and maybe by electrodiffusion. Small contents of chromophore chemical elements are related to the colors of beryl, like iron, chromium, vanadium, manganese, and others. There is great interest i
REM, Int. Eng. J.. Publicado em: 2017-09
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4. Does laser diode irradiation improve the degree of conversion of simplified dentin bonding systems?
Abstract Simplified dentin-bonding systems are clinically employed for most adhesive procedures, and they are prone to hydrolytic degradation. Objective This study aimed to investigate the effect of laser diode irradiation on the degree of conversion (DC), water sorption (WS), and water solubility (WSB) of these bonding systems in an attempt to improve the
J. Appl. Oral Sci.. Publicado em: 2017-08
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5. Diode laser irradiation increases microtensile bond strength of dentin
Laser irradiation after the immediate application of dentin bonding systems (DBSs) and prior to their polymerization has been proposed to increase bond strength. The objective of this study was to evaluate the effect of diode laser irradiation (λ = 970 nm) on simplified DBSs through microtensile bond strength tests. Forty healthy human molars were randomly
Braz. oral res.. Publicado em: 02/12/2014
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6. Aplicação da radiação ultravioleta como forma de contribuição para a química verde e construção de um reator fotoquímico alternativo e de baixo custo, para pré-tratamento de amostras
Ultraviolet radiation corresponds to a fraction of electromagnetic radiation, covering wavelengths between 1 and 400 nm. Methods based on UV irradiation have become popular because it is possible to treat samples simply by applying energy, avoiding procedures that require the use of toxic substances, thus contributing to the development of Green Chemistry. T
Quím. Nova. Publicado em: 2014-04
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7. Expressao da ciclooxigenase-2 (COX-2) e do fator de necrose tumoral (TNF-) na viabilidade de retalho cutaneo randomico em ratos apos a irradiacao laser de baixa intensidade / Expressao da ciclooxigenase-2 (COX-2) e do fator de necrose tumoral (TNF-) na viabilidade de retalho cutaneo randomico em ratos apos a irradiacao laser de baixa intensidade / Expression of cyclooxygenase-2 (COX-2) and tumor necrosis factor-alpha (TNF-á) on viability of random skin flaps in rats after low level laser therapy / Expression of cyclooxygenase-2 (COX-2) and tumor necrosis factor-alpha (TNF-á) on viability of random skin flaps in rats after low level laser therapy
Objective: To investigate the effect of low intensity laser irradiation on viability of random skin flap in rats and to evaluate the concentration levels of COX-2 and TNF- á. Method: The sample consisted of 24 rats Wistar EPM-1 randomly divided into three groups. All animals were subjected to a surgically induced cranial base dorsal skin flap, measuring 10X
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2011
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8. Drying of Echinodorus macrophyllus and autoclaving and lyophilization of the fluid-extract: effects on the pharmacochemical composition
Some pharmaceutical industries of phytomedicines are using conservation procedures (drying, autoclaving), in an attempt to avoid medicinal plants degradation, and of their fluid-extracts. Or, by adopting techniques adequate to foods, which not always are appropriate. On this sense, there is less research with Brazilian plants, causing some difficulties for t
Revista Brasileira de Farmacognosia. Publicado em: 06/05/2011
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9. Synthesis of quinoxaline 1,4-di-N-oxide derivatives on solid support using room temperature and microwave-assisted solvent-free procedures
We describe the synthesis of 12 new ethyl and methyl quinoxaline-7-carboxylate 1,4-di-N-oxide derivatives on solid supports with room temperature and microwave-assisted solvent-free procedures. Results show that solid supports have good catalytic activity in the formation of quinoxaline 1,4-di-N-oxide derivatives. We found that florisil and montmorillonite K
Química Nova. Publicado em: 2011
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10. Avaliação do substrato dentinário irradiado com laser de Er:YAG : resistência de união, padrão de fratura e análise ultramorfológica / Evaluation of dentin irradiated with Er:YAG laser : bond strength, failure pattern and ultramorphology analysis
The Er:YAG laser has been widely used in Dentistry and because its ability to remove mineralized dental tissues, it is indicate to be used in Operative Dentistry. As the Er:YAG laser is recent, little is known about the consequences of dental tissues irradiation and their effects on adhesive restorative procedures. Thus, the objectives of this study were to
Publicado em: 2011
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11. Nd:YAG laser irradiation effect on apical intracanal dentin - a microleakage and SEM evaluation
The purpose of this in vitro study was to evaluate the effect of neodymium:yttrium-aluminum-garnet (Nd:YAG) laser irradiation on intracanal dentin surface by SEM analysis and its interference in the apical seal of filled canals. After endodontic treatment procedures, 34 maxillary human incisors were randomly assigned to 2 groups. In the negative control grou
Brazilian Dental Journal. Publicado em: 2011
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12. Evaluation of different sample preparation procedures using chemometrics: comparison among photo-fenton reaction, microwave irradiation, and direct determination of minerals in fruit juices.
In this work, an exploratory study about the mineral characteristic of some fruit juice (passion fruit, pineapple, orange, and grape) applying chemometric tools was made. The juices analyzed were separated in different groups by principal components analysis and hierarchical components analysis in accordance with their minerals contents. Barium, C, Ca, K, Mg
Food Analytical Methods. Publicado em: 2011