36 research outputs found

    Does a toothpaste containing blue covarine have any effect on bleached teeth? An in vitro, randomized and blinded study

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    Abstract The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) were randomly distributed in 6 groups (n = 15), according to the technique used to bleach them (in-office: HP35%; at-home: PC10%) and the type of bleaching toothpaste (none: control; Blue Covarine containing: BC; and without Blue Covarine: NBC). Experimental groups denominated HP35%, HP35%BC and HP35%NBC received in-office tooth bleaching before toothbrushing, and groups PC10%, PC10%BC and PC10%NBC were subjected to at-home tooth bleaching prior to toothbrushing. After bleaching treatment, groups HP35%BC, PC10%BC, HP35%NBC and PC10%NBC underwent daily tooth brushing in a brushing machine for 3 minutes (150 strokes/min, with a load of 375 g). Tooth color alteration was measured by reflectance spectroscopy (Vita EasyShade, Vident, Brea, CA, USA) at: T0 (baseline) – after in-office or at-home bleaching treatment; T1 – immediately after tooth brushing; T2 - 7 days and T3 - 14 days after tooth brushing. Data was analyzed by repeated measures mixed ANOVA and the Bonferroni post hoc test, with a significance level of 5%. Statistically significant differences were found between different experimental groups, evaluation times and for the interaction between them (p < 0.001). Tooth brushing using either bleaching toothpaste (conventional or with Blue Covarine) showed no color alteration on teeth previously bleached by in-office and at-home tooth bleaching. The use of bleaching toothpastes on previously bleached teeth did not produce a color alteration

    WAYFINDING DESIGN BASEADO EM EVIDÊNCIAS PARA O AMBIENTE HOSPITALAR PEDIÁTRICO: DOI: https://doi.org/10.29327/5457226.1-158

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    Este estudo objetiva identificar os fluxos e elementos informacionais de um ambiente hospitalar infantil, pois se relacionam diretamente com o wayfinding design, uso do espaço, atividades e comportamentos dos usuários. Os pacientes e seus acompanhantes, geralmente, passam muito tempo esperando para serem atendidos, o que, particularmente, os tornam propensos a certos sentimentos. Fato este que afeta negativamente a experiência geral de atendimento. Este estudo utilizou o método WIB (Wayfinding Informational Behavior) e o caso de aplicação foi o Instituto Nacional da Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, localizado no Rio de Janeiro - RJ. Através dos resultados, constatou-se que o espaço hospitalar pediátrico, atualmente, não atende às principais necessidades de orientação espacial e há problemas com o sistema informacional. O layout funcional, organização do fluxo e wayfinding design poderiam melhorar a experiência. Estudos futuros pretendem aprofundar a compreensão do comportamento de busca e uso das informações pelos usuários para propor um novo sistema de wayfinding. Palavras-Chave: wayfinding; orientação espacial; hospital

    Occurrence of gastrointestinal parasites in goat kids Ocorrência de parasitos gastrintestinais em cabritos

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    Fecal samples from male and female goat kids, of different breeds and up to one year of age, were analyzed to determine egg and oocyst counts per gram of feces (EPG and OPG, respectively), and fecal culturing was performed to identify nematode genera. Helminth eggs and Eimeria spp. oocysts were found in 93.06% (188/202) and 77.22% (156/202) of the fecal samples, respectively. From fecal cultures, the following genera were identified: Cooperia in 11.88% (24/202), Haemonchus in 51.98% (105/202), Oesophagostomum in 9.4% (19/202), Strongyloides in 5.94 (12/202) and Trichostrongylus in 20.79% (42/202) of the samples. The Eimeria species found were E. alijevi in 25.24% (51/202), E. arloingi in 7.42% (15/202), E. caprina in 2.97% (6/202), E. caprovina in 10.39% (21/202), E. christenseni in 4.45% (9/202), E. joklchijevi in 11.38% (23/202), E. hirci in 9.4% (19/202) and E. ninakohlyakimovae in 28.71% (58/202) samples. Among the gastrointestinal parasites, the genus Haemonchus and two Eimeria species (E. ninakohlyakimovae and E. alijevi) were predominants.<br>Amostras fecais de cabritos machos e fêmeas, de diferentes raças e com até uma ano de idade, foram examinadas para determinação do número de ovos e oocistos por grama de fezes (OPG e OoPG, respectivamente) e coprocultura para identificação genérica dos nematódeos. Ovos de helmintos e oocistos de Eimeria spp. foram observados em 93,06% (188/202) e 77,22% (156/202) das amostras, respectivamente. Pelas coproculturas, foram identificados os gêneros Cooperia em 11,88% (24/202), Haemonchus em 51,98% (105/202), Oesophagostomum em 9,4% (19/202), Strongyloides em 5,94 (12/202) e Trichostrongylus em 20,79% (42/202) das amostras. As espécies de Eimeria encontradas foram E. alijevi em 25,24% (51/202), E. arloingi em 7,42% (15/202), E. caprina em 2,97% (6/202), E. caprovina em 10,39% (21/202), E. christenseni em 4,45% (9/202), E. joklchijevi em 11,38% (23/202), E. hirci em 9,4% (19/202) e E. ninakohlyakimovae em 28,71% (58/202) das amostras. Dentre os parasitas gastrintestinais, houve predominância do gênero Haemonchus e de duas espécies de Eimeria: E. ninakohlyakimovae e E. alijevi
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