Discoloration
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. Photo-Fenton-Based Degradation of Methylene Blue Dye Using Hydroxyapatite Nanoparticles Doped with Fe3O4/γ-Fe2O3
In this study, we evaluated the catalytic properties of hydroxyapatite (HA) nanoparticles (NPs) doped with Fe3O4/γ-Fe2O3 for the degradation of methylene blue (MB) dye using a photo-Fenton process at pH 2.5, 7.0, and 9.0. The HA NPs were characterized using X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectrometry, Raman spect
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Tooth Discoloration Using Calcium Silicate-Based Cements For Simulated Revascularization in Vitro
Resumo A revascularização endodôntica pode ser um tratamento alternativo para dentes imaturos necrosados, porém, várias etapas do tratamento podem causar alteração de cor dental. Este estudo avaliou o uso de três cimentos a base de silicato de cálcio com diferentes agentes radiopacificadores na alteração de cor (∆E) de pré-molares extraídos ap
Braz. Dent. J.. Publicado em: 2021-02
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3. Prevalence of Dental Anomalies in Indonesian Individuals with Down Syndrome
Abstract Objective: To determine the frequency distribution of dental anomalies in people with Down syndrome. Material and Methods: This cross-sectional study was developed in Jakarta, Indonesia, and evaluated 174 individuals with Down syndrome aged 14-53 years. Were collected information regarding the tooth number, tooth size, shape, and structure. Descri
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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4. New Proposal for Sugarcane Vinasse Treatment by Hydrothermal Carbonization: An Evaluation of Solid and Liquid Products
Vinasse is a residue of ethanol production from sugarcane. In view of the problems associated with its disposal, this study aimed to propose a treatment for vinasse by hydrothermal carbonization. The influence of temperature (100 to 200 ºC), acidity (1.7 to 8.3%) and reaction time (12 to 48 h) on the hydrothermal treatment was evaluated, as well the charact
J. Braz. Chem. Soc.. Publicado em: 2020-01
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5. Methods of diagnosis and treatment of complex regional pain syndrome: an integrative literature review
RESUMO JUSTIFICATIVA E OBJETIVOS: A síndrome da dor regional complexa é caracterizada por dor intensa que acomete uma extremidade do corpo, além de edema, aumento da sensibilidade ao frio e ao toque, sudorese, alteração de coloração e diminuição da capacidade de movimento. O objetivo deste estudo foi identificar e analisar os métodos de diagnósti
BrJP. Publicado em: 02/12/2019
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6. Leachate and vinasse used in a biological process combined with Fenton’s reaction: a green method for treatment of textile effluents
Abstract: The production of textiles generates a large amount of liquid residues considered to be environmentally problematic and which, if discarded without due treatment, may cause eutrophication of water sources, the intoxication of living beings, and the blocking of light penetration. Some methods have been applied for the treatment of this type of waste
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019
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7. Clinical and Radiographic Sequelae in Primary Teeth due to Dental Trauma
Abstract Objective: To evaluate the presence of clinical and radiographic sequelae in primary teeth affected by dental trauma and its association with age at the time of trauma in children attended at a Public Higher Education Institution. Material and Methods: This is a longitudinal clinical study, in which 229 patients with history of dental trauma in pr
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 31/10/2019
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8. A randomized, prospective clinical study evaluating effectiveness of a bulk-fill composite resin, a conventional composite resin and a reinforced glass ionomer in Class II cavities: one-year results
Abstract Bulk-fill restorative materials such as bulk-fill composite resins and high viscous glass ionomer cements have become very popular materials in operative dentistry because their application is easy and time-saving. Objectives: The aim of this clinical study was to evaluate the clinical performance of a highly viscous reinforced glass ionomer materi
J. Appl. Oral Sci.. Publicado em: 07/10/2019
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9. Neurological diseases in cattle caused by plants and mycotoxins in Santa Catarina state, Brazil
RESUMO: Descrevem-se os aspectos epidemiológicos e clinico-patológicos de 25 surtos de enfermidade neurológica em bovinos no estado de Santa Catarina causadas por plantas e micotoxinas. Destes, seis corresponderam a intoxicação por Sida carpinifolia, cinco por Solanum fastigiatum, cinco por Phalaris angusta, três por Claviceps paspali, três por Clavic
Pesq. Vet. Bras.. Publicado em: 02/05/2019
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10. Twenty-four-month clinical performance of different universal adhesives in etch-and-rinse, selective etching and self-etch application modes in NCCL – a randomized controlled clinical trial
Abstract Objective The aim of this randomized, controlled, prospective clinical trial was to evaluate the performances of two different universal adhesives and one etch-rinse adhesive for restoration of non-carious cervical lesions (NCCLs). Material and Methods Twenty patients with at least seven NCCLs were enrolled. Lesions were divided into seven group
J. Appl. Oral Sci.. Publicado em: 11/04/2019
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11. Pulp canal obliteration after traumatic injuries in permanent teeth – scientific fact or fiction?
Abstract: Pulp canal obliteration (PCO) is a frequent finding associated with pulpal revascularization after luxation injuries of young permanent teeth. The underlying mechanisms of PCO are still unclear, and no experimental scientific evidence is available, except the results of a single histopathological study. The lack of sound knowledge concerning this p
Braz. oral res.. Publicado em: 18/10/2018
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12. CuO Rapid Synthesis with Different Morphologies by the Microwave Hydrothermal Method
CuO structures were synthesized by microwave hydrothermal treatment using two different mineralizing agents (NaOH and NH4OH) and were evaluated as photocatalysts. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. The XRD patterns indicated the formation of
Mat. Res.. Publicado em: 11/10/2018