Erosive Wear
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures
Abstract The microstructures of steels are altered when exposed to high working temperatures for long periods, which results in varied physical and chemical proprieties. This study evaluates the erosive wear behavior of ASTM A106 steel after it is exposed to high temperatures for long durations. Samples of normalized ASTM A106GrB steel were placed in a muffl
REM, Int. Eng. J.. Publicado em: 2020-12
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2. Effect of LZSA glass-ceramic addition on the erosive wear of pressureless sintered alumina
Abstract This study aims to evaluate the influence of the 11.6Li2O-16.8ZrO2-68.2SiO2-3.4Al2O3 (mol%) glass-ceramic addition (LZSA, 7 to 21 vol%) on the erosive wear of alumina in comparison to values of pure alumina obtained from the literature. Thus, composites were prepared from three commercial alumina of different initial particle sizes. Specimens were o
REM, Int. Eng. J.. Publicado em: 2020-06
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3. Erosive tooth wear among South Brazilian adolescents, and its association with sociodemographic variables
Abstract The aim of this study was to assess the occurrence of erosive tooth wear (ETW) among 15–19-year-old South Brazilian adolescents, regarding prevalence, extent, severity, intraoral distribution, and sociodemographic risk indicators. A population-based cross-sectional survey was conducted in Santa Maria, southern Brazil, and included a representative
Braz. oral res.. Publicado em: 10/01/2020
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4. Influence of cigarette smoke combined with different toothpastes on enamel erosion
Abstract: This in vitro study aimed to evaluate the effect of different toothpastes on dental enamel subjected to an erosive cycle with and without exposure to cigarette smoke. Bovine enamel specimens were randomly allocated into 12 groups (n = 12). For the in vitro simulation of smoking, half the groups underwent an exposure cycle of 20 cigarettes per day f
Braz. oral res.. Publicado em: 02/12/2019
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5. Corrosion-cavitation-erosion: surface morphology study of a carbon steel in a multiphasic saline bath
ABSTRACT During the production of petroleum and gas, the equipments employed for this activity are subjected to synergetic wear mechanisms, such as corrosion, corrosion-cavitation and corrosion-cavitation-erosion. Laboratory experiments has been performed to reproduce some of these mechanisms, however, sometimes the tests is not capable to recreate the compl
Matéria (Rio J.). Publicado em: 20/05/2019
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6. Influence of mandibular and palatal intraoral appliances on erosion in situ study outcome
Abstract The standardization of in situ protocols for dental erosion is important to enable comparison between studies. Objective: Thus, the objectives of this study were to evaluate the influence of the location of in situ intraoral appliance (mandibular X palatal) on the extent of enamel loss induced by erosive challenges and to evaluate the comfort of th
J. Appl. Oral Sci.. Publicado em: 14/01/2019
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7. Avaliação do estresse oxidativo da saliva de crianças com erosão dentária
RESUMO Objetivo Avaliar o estresse oxidativo da saliva de crianças que possuíam erosão dentária, comparadas àquelas que não apresentavam esta situação. Métodos Um único examinador, treinado e calibrado para o diagnóstico de erosão dentária, segundo o índice de Basic Erosive Wear Examination, selecionou 40 crianças de 4 a 6 anos de idade qu
Einstein (São Paulo). Publicado em: 11/06/2018
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8. Active compounds and derivatives of camellia sinensis responding to erosive attacks on dentin
Abstract This research explored the potential of Camellia sinensis-derived teas and active compounds to be used as treatments to prevent dentin wear. Human root dentin slabs were randomly assigned to 5 groups (n = 10) as follows: distilled water (DW, control), epigallocatechin-3-gallate (EGCG), theaflavin gallate derivatives (TF), commercial green tea (GT),
Braz. oral res.. Publicado em: 24/05/2018
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9. Erosion and abrasion-inhibiting in situ effect of the Euclea natalensis plant of African regions
Abstract This study evaluated the effect of Euclea natalensis gel on the reduction of erosive wear with or without abrasion, in enamel and dentin. During two five-day experimental crossover phases, volunteers (n = 10) wore palatal devices containing human enamel and dentin blocks (E = 8 and D = 8). The gel was applied in a thin layer in the experimental grou
Braz. oral res.. Publicado em: 14/06/2016
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10. CO2 laser and/or fluoride enamel treatment against in situ/ex vivo erosive challenge
ABSTRACT Objective This in situ/ex vivo study investigated the effect of CO2 laser irradiation and acidulated phosphate fluoride gel (APF) application, separately and in combination, on enamel resistance to erosion. Material and Methods During 2 experimental 5-day crossover phases, 8 volunteers wore intraoral appliances containing bovine enamel blocks wh
J. Appl. Oral Sci.. Publicado em: 2016-06
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11. Preventive effect of toothpastes with MMP inhibitors on human dentine erosion and abrasion in vitro
ABSTRACT The use of gels and mouthrinses with MMP inhibitors (chlorhexidine, and green tea extract) was shown to prevent erosive wear. The aim of this study was to analyze the protective effect of toothpastes containing MMP inhibitors on dentine loss induced by erosion in vitro. Material and Methods Five groups each containing 12 specimens of human root de
J. Appl. Oral Sci.. Publicado em: 2016-02
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12. TiF4 and NaF varnishes as anti-erosive agents on enamel and dentin erosion progression in vitro
Objective This study assessed the effect of fluoride varnishes on the progression of tooth erosion in vitro. Material and Methods: Forty-eight enamel and 60 root dentin samples were previously demineralized (0.1% citric acid, pH 2.5, 30 min), leading to a baseline and erosive wear of 12.9 and 11.4 µm, respectively. The samples were randomly treated (6 h) w
J. Appl. Oral Sci.. Publicado em: 2015-02