15 research outputs found

    Microabrasion in tooth enamel discoloration defects: three cases with long-term follow-ups

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    Superficial irregularities and certain intrinsic stains on the dental enamel surfaces can be resolved by enamel microabrasion, however, treatment for such defects need to be confined to the outermost regions of the enamel surface. Dental bleaching and resin-based composite repair are also often useful for certain situations for tooth color corrections. This article presented and discussed the indications and limitations of enamel microabrasion treatment. Three case reports treated by enamel microabrasion were also presented after 11, 20 and 23 years of follow-ups224347354sem informaçã

    Microabrasion in tooth enamel discoloration defects: three cases with long-term follow-ups

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    Superficial irregularities and certain intrinsic stains on the dental enamel surfaces can be resolved by enamel microabrasion, however, treatment for such defects need to be confined to the outermost regions of the enamel surface. Dental bleaching and resin-based composite repair are also often useful for certain situations for tooth color corrections. This article presented and discussed the indications and limitations of enamel microabrasion treatment. Three case reports treated by enamel microabrasion were also presented after 11, 20 and 23 years of follow-ups

    Microabrasion in tooth enamel discoloration defects: three cases with long-term follow-ups

    Get PDF
    Superficial irregularities and certain intrinsic stains on the dental enamel surfaces can be resolved by enamel microabrasion, however, treatment for such defects need to be confined to the outermost regions of the enamel surface. Dental bleaching and resin-based composite repair are also often useful for certain situations for tooth color corrections. This article presented and discussed the indications and limitations of enamel microabrasion treatment. Three case reports treated by enamel microabrasion were also presented after 11, 20 and 23 years of follow-ups

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Efeito da microabrasão e do clareamento dental na rugosidade superficial e microdureza do esmalte dental: estudo longitudinal ‘in situ’

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    O objetivo deste trabalho in situ foi avaliar se a associação da microabrasão do esmalte com o clareamento dental causaria danos às propriedades do esmalte dental microabrasionado, através dos testes de rugosidade superficial, de microdureza do esmalte dental e de microscopia eletrônica por varredura. Os fatores em estudo foram: técnicas em 5 níveis: controle, microabrasão (Opalustre – Ultradent Products Inc. Utah, USA), clareamento dental (Opalescence Boost PF 38 % - Ultradent Prodcuts Inc. Utah, USA) e a associação dos dois procedimentos (imediata e tardia); assim como o tempo de manutenção dos espécimes in situ: 0, 1, 3, 7 dias. As variáveis de resposta foram microdureza e a rugosidade superficial. Foram utilizados 50 dentes bovinos hígidos, seccionados em discos de esmalte/dentina com 5,7mm de diâmetro. Os espécimes selecionados foram aleatoriamente divididos em 5 grupos de estudo (n=10): Grupo Controle + 0, 1, 3, 7 dias in situ; GI Clareamento + 0, 1, 3, 7 dias in situ; GII Microabrasão + 0, 1, 3, 7 dias in situ; GIII Microabrasão + Clareamento + 0, 1, 3, 7 dias in situ e GIV Microabrasão + 0, 1, 3, 7 dias in situ + Clareamento. Os resultados foram submetidos à análise de variância de dois fatores (ANOVA) para medidas repetidas, seguidas pelo teste de Tukey a 5%. Foi observado que a rugosidade superficial do esmalte dental não foi alterada pela realização do clareamento dental com/sem período in situ, mas foi significativamente influenciada pela realização da microabrasão associada ou não com o clareamento dental, com/sem período in situ. Já a microdureza do esmalte dental, em uma comparação entre grupos, sofreu redução significativa nos grupos onde a microabrasão do esmalte foi realizada, independente da associação com o clareamento dental; sendo que após o período in situ observou-se o reestabelecimento da microdureza...The aim of this in situ study was to evaluate if the association of microabrasion enamel with dental bleaching causes damage to microabrasioned enamel properties, through the surface roughness, hardness of dental enamel and scanning electron microscopy tests. The factors under study were: procedure on 5 levels: control, microabrasion (Opalustre - Ultradent Products Inc. Utah, USA), dental bleaching (Opalescence Boost PF 38 % - Ultradent Prodcuts Inc. Utah, USA) and the association of the two procedures (immediate and late), as well as the maintenance time of the specimens in situ: 0, 1, 3, 7 days. The response variables were microhardness and surface roughness. Fifty healthy bovine teeth were used, sectioned into discs of enamel/dentin with 5.7 mm diameter. The selected specimens were randomly divided into 5 groups (n=10): control group + 0 , 1 , 3 , 7 days in situ; GI dental bleaching + 0, 1, 3, 7 days in situ; GII Microabrasion + 0, 1, 3, 7 days in situ; GIII Microabrasion + dental bleaching + 0, 1, 3, 7 days in situ and GIV Microabrasion + 0, 1, 3, 7 days in situ + dental bleaching. The results were subjected to two way repeated measures ANOVA for followed by the Tukey test at 5 %. It was observed that the enamel roughness surface was not altered by dental bleaching, with/without in situ period, but was significantly influenced by microabrasion, associated or not with dental bleaching, with/without in situ period; whereas the enamel microhardness, in a comparison between groups, was significantly decreased in the groups where enamel microabrasion was performed, regardless of association with dental bleaching; after the in situ period, there was satisfactory reestablishment of enamel microhardness. It can be conclude that the association of enamel microabrasion with dental bleaching does not cause damage on microabrasioned enamel properties.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

    Odontologia adesiva atual: uma revisão de literatura

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    Over the decades, there was an evolution in dentistry, specifically in filling technique, and Buonocore (1955) has been the introducer of Adhesive Era. Thus, this paper aims to review the literature about the current adhesive systems. Was performed a literature review about the 5th and 6th adhesive system generations. The titles and abstracts of published articles were analyzed in PubMed database over the past 5 years. However, there are still different views about the technique used, therefore, because the diversity of these materials, it is impossible to highlight one that presents the best efficiency in all situations, being the responsibility of the professional the knowledge of the techniques and clinical applicability of each material.Com o passar das décadas, houve uma evolução na odontologia, mais especificamente das técnicas restauradoras, sendo Buonocore (1955) o introdutor da Era Adesiva. Sendo assim, este trabalho tem como objetivo revisar a literatura acerca dos sistemas adesivos atuais. Foi realizada uma revisão de literatura sobre os sistemas de 5º e 6º gerações. Os resumos e títulos dos artigos publicados foram analisados na base de dados PubMed nos últimos 5 anos. No entanto, ainda há divergência de opiniões quanto a técnica empregada, sendo assim, diante da diversidade desses materiais, torna-se impossível destacar aquele que apresente melhor eficácia em todas as situações, sendo de responsabilidade do profissional obter o conhecimento das técnicas e da aplicabilidade clínica de cada material

    Microabrasion in tooth enamel discoloration defects: three cases with long-term follow-ups

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    Superficial irregularities and certain intrinsic stains on the dental enamel surfaces can be resolved by enamel microabrasion, however, treatment for such defects need to be confined to the outermost regions of the enamel surface. Dental bleaching and resin-based composite repair are also often useful for certain situations for tooth color corrections. This article presented and discussed the indications and limitations of enamel microabrasion treatment. Three case reports treated by enamel microabrasion were also presented after 11, 20 and 23 years of follow-ups
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