Molar
Mostrando 13-24 de 3776 artigos, teses e dissertações.
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13. Analysis of the mandibular molars root canals morphology. Study by computed tomography
Abstract This study aimed to analyze the root and root canal morphology of mandibular first and second molars using CBCT images. A total of 2,400 mandibular molars exams were selected from 600 patients aged between 18 and 75 years. The number of roots, number of root canals, and root canal configuration according to the Vertucci classification were verified.
Brazilian Dental Journal. Publicado em: 2022
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14. Transient unilateral lingual nerve injury following the use of laryngeal mask airway Supreme: a case report
Abstract Lingual nerve injury rarely occurs after using the laryngeal mask airway (LMA). A 40-year-old woman with no comorbidities visited the hospital for left breast-conserving surgery. Anesthesia was performed using LMA Supreme™. She complained of decreased sensation in the right front part of the tongue postoperatively. She received prednisolone and to
Brazilian Journal of Anesthesiology. Publicado em: 2022
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15. Clinical Presentation, Treatment Outcomes, and Resistance-related Factors in South American Women with Low-risk Postmolar Gestational Trophoblastic Neoplasia
Resumo Objetivo Existem poucos estudos multinacionais sobre os resultados do tratamento da neoplasia trofoblástica gestacional (NTG) na América do Sul. O objetivo deste estudo foi avaliar a apresentação clínica, os resultados do tratamento e os fatores associados a casos de quimiorresistência em NTG pós-molar de baixo risco tratados com quimioterapia
Revista Brasileira de Ginecologia e Obstetrícia. Publicado em: 2022
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16. Selective formation of neodymium phosphate from iron-neodymium magnet waste
Abstract Neodymium-iron-boron alloy, Nd2Fe14B, is used as a material for magnets. Neodymium is one of the valuable and expensive rare earth elements and is often recovered to reduce costs and environmental impact. Recently, a method for recovering neodymium as neodymium phosphate from mixed solutions was reported. This method was very useful because the main
Cerâmica. Publicado em: 2022
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17. Association between hypomineralization of deciduous and molar incisor hypomineralization and dental caries
Resumo O objetivo desse estudo foi avaliar a associação entre a severidade da Hipomineralização de Segundos Molares decíduos (HSMD), da Hipomineralização de Molares e Incisivos (HMI) e cárie dentária em crianças. Neste estudo transversal foram incluídas 450 crianças entre 6 e 7 anos de idade. Um examinador calibrado classificou as hipomineraliza�
Brazilian Dental Journal. Publicado em: 2022
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18. Pós-tratamento de efluente de biorreator com membranas submersas por coagulação/floculação: remoção de cor, matéria orgânica e fósforo
RESUMO Biorreatores com membranas submersas (MBR) produzem efluente de elevada qualidade, porém, para algumas situações de reúso de água ou lançamento em corpos hídricos, ainda pode ser necessária a remoção adicional de coloides e fósforo. Neste estudo, foram avaliadas as eficiências de remoção de cor verdadeira, matéria orgânica e fósforo d
Engenharia Sanitaria e Ambiental. Publicado em: 2022
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19. Emotional and Clinical Aspects Observed in Women with Gestational Trophoblastic Disease: A Multidisciplinary Action
Resumo Objetivo Avaliar aspectos emocionais e clínicos observados em mulheres com doença trofoblástica gestacional (DTG) acompanhadas em um centro de referência (CR), por equipe multiprofissional. Método Estudo de coorte retrospectivo nos prontuários clínicos de 186 mulheres comDTG, e dos aspectos emocionais (AE) observados nessas mulheres pela eq
Revista Brasileira de Ginecologia e Obstetrícia. Publicado em: 2022
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20. Extraction and Characterization of Pequi Seed Oil for Biodiesel Production: A Green Management of Waste to Biofuel Using Ethanol and Heterogeneous Catalysis
This work reports the characterization of a vegetable oil extracted from pequi seeds, an agroindustrial residue, and its biodiesel production using ethanol and heterogeneous catalysis. The pequi seeds showed 40.73 wt.% of extractive content, which represents a large amount of the biomass composition. The crude oil extracted from the pequi seeds with ethanol
Journal of the Brazilian Chemical Society. Publicado em: 2022
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21. A Greener Enzymatic Oligoesterification of Biobased Renewable Synthons
Polyesters of xylitol and succinic acid were prepared yielding from 70 to 75% by enzyme-catalyzed esterification using a molar mass from 1:1 to 2:5 at 120 and 140 °C employing from 1 to 10% m/m of enzyme. Control over branching degree was achieved by tuning the reaction conditions (temperature, time, comonomer ratio, enzyme content). This one-step process f
J. Braz. Chem. Soc.. Publicado em: 2021-06
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22. Determination of carrageenan in jellies with new methylene blue dye using spectrophotometry, smartphone-based colorimetry and spectrophotometric titration
Abstract Carrageenan is a seaweed polysaccharide widely used as a food gelling and thickening agent. The New Methylene Blue dye was tested as an analytical reagent for the quantification of carrageenan in commercial jelly samples. The main spectral peaks of the dye decrease with increasing carrageenan-to-dye molar ratio up to 1. Three analytical procedures w
Food Sci. Technol. Publicado em: 2021-06
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23. Improving Photoluminescence Quantum Yield of CdTe Quantum Dots Using a Binary Solvent (Water + Glycerin) in the One-Pot Approach Synthesis
The present work describes the comparison of the optical and structural properties between CdTe quantum dots (QD) synthesized in water and in the binary solvent (water + glycerin) via one-pot approach synthesis. The optical properties of the nanocrystals obtained with different synthesis parameters were characterized by UV-visible and photoluminescence spect
J. Braz. Chem. Soc.. Publicado em: 2021-04
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24. MODIFICAÇÃO QUÍMICA DO POLIPROPILENO ATRAVÉS DA INTRODUÇÃO DE GRUPOS SULFÔNICOS PARA APLICAÇÃO COMO CATALISADOR EM REAÇÕES DE ESTERIFICAÇÃO
In this work, the chemical modification of pristine polypropylene was carried out through sulfonation reactions with concentrated sulfuric acid (PPS1) and fuming sulfuric acid (PPS2), for production of heterogeneous catalysts used in esterification reactions. Fourier transform infrared spectroscopy, elemental analysis, degree of substitution and ion exchange
Quím. Nova. Publicado em: 2021-04