Comparative in vitro study of intracanal Enterococcus faecalis reduction using photosensitizers in aPDT

Aim: To compare Enterococcus faecalis reduction after antimicrobial photodynamic therapy (aPDT) used with methylene blue, toluidine blue, tannin, and curcumin as photosensitizers, an adjunct to endodontic chemomechanical preparation (CMP) in root canals of human teeth. Methods: A total of 120 single-rooted teeth were divided into 6 groups (n = 20): G1- CMP and 2.5% sodium hypochlorite (NaOCl); G2- CMP and saline solution; G3- CMP, 2.5% NaOCl, and aPDT with 0.005% methylene blue; G4- CMP, 2.5% NaOCl, and aPDT with 0.005% toluidine blue; G5- CMP, 2.5% NaOCl, and aPDT with 0.005% tannin; and G6- CMP, 2.5% NaOCl, and aPDT with 0.005% curcumin. A portable semiconductor laser was used (660 nm, 100 mW, 1.8 J, 180s) in groups 1, 2, 3, 4, 5, and a blue LED light-curing (420-480 nm, 1200 mV/cm2 ) in G6. For all groups, a 5 min pre-irradiation time was applied. Samples were collected before (initial collection), immediately after (intermediate collection) and 7 days after CMP (final collection) for colony-forming unit (CFU) counting. The Kruskal-Wallis test and analysis of variance (ANOVA) were performed (p < 0.05; 95% confidence interval). Results: In between-group comparisons, there was no significant difference observed in the number of CFUs at the initial (p >< 0.001) and final collections (p >< 0.001) for G2 and G3. In within-group comparisons, the number of CFUs showed a decreasing trend in G4 (p = 0.007) and G5 (p = 0.001). Conclusion: Photosensitizers promoted E. faecalis reduction, with better results for tannin and curcumin. Alternative photosensitizers should be the focus of further studies.>< 0.05; 95% confidence interval). Results: In between-group comparisons, there was no significant difference observed in the number of CFUs at the initial (p < 0.001) and final collections (p >< 0.001) for G2 and G3. In within-group comparisons, the number of CFUs showed a decreasing trend in G4 (p = 0.007) and G5 (p = 0.001). Conclusion: Photosensitizers promoted E. faecalis reduction, with better results for tannin and curcumin. Alternative photosensitizers should be the focus of further studies.>< 0.001) and final collections (p < 0.001) for G2 and G3. In within-group comparisons, the number of CFUs showed a decreasing trend in G4 (p = 0.007) and G5 (p = 0.001). Conclusion: Photosensitizers promoted E. faecalis reduction, with better results for tannin and curcumin. Alternative photosensitizers should be the focus of further studies>< 0.001) for G2 and G3. In within-group comparisons, the number of CFUs showed a decreasing trend in G4 (p = 0.007) and G5 (p = 0.001). Conclusion: Photosensitizers promoted E. faecalis reduction, with better results for tannin and curcumin. Alternative photosensitizers should be the focus of further studies

Teledentistry and the Unified Health System: An Important Tool for the Resumption of Primary Health Care in the Context of the COVID-19 Pandemic

Abstract This paper describes the possibilities of using Teledentistry to expand and qualify health care in oral health care networks. WHO already recommended to its member countries, even before the pandemic, Telehealth as a strategy to improve the quality of services, especially in universal systems, as the Unified Health System (SUS). Teledentistry opens opportunities for oral health to resume the provision of various services, remotely, such as: 1) Tracking, active search, monitoring of priority users, those at risk and with systemic problems, suspicions of COVID-19 and contacts, through Telemonitation; 2) Initial listening, individual or collective educational activities, through Teleorientation; 3) Discussion of clinical cases for the definition of the opportunity / need for operative procedures, matrix support, sharing, solution of doubts among professionals and between these and teaching and research institutions, by Teleconsulting, among others. In addition to a review of Teledentistry in the context of the pandemic, we conceptualized the terms used and possibilities offered to SUS professionals, in addition to specifying the possible protocols for recording these activities to provide safe data for their monitoring and evaluation. Besides, we bring a brief discussion with promising experiences, carried out in the pre- and trans-pandemic contexts, which can be important strategies for the resumption of oral health in the post-pandemic scenario.

Aplicações de Business Intelligence na Saúde: Revisão de Literatura / Business intelligence applications in healthcare: Literature Review / Inteligencia de negocio aplicada a la salud: Revisión de Literatura

Este artigo revisa a literatura publicada entre 2009 e 2014 sobre aplicação de Business Intelligence (BI) na saúde, indexada nas bases de dados Scopus, PubMed, Bireme, Web of Science e Google Scholar. A busca pelos descritores "Business Intelligence" e "saúde" e a sua combinação retornou 339 artigos, sendo selecionados 17 adequados aos critérios estabelecidos. Os artigos foram classificados nas temáticas "cuidados em saúde" e "gestão". Não houve predominância de temáticas. O ano 2010 foi o de maior número de publicações e Portugal, Canadá e EUA os países de origem da maior parte dos autores. Com as práticas de BI a estruturação e análise da informação possibilitou o monitoramento do desempenho do ponto de vista assistencial e gerencial. Confirmou-se que as práticas de Business Intelligence podem ser aplicadas no setor de saúde, com valorização das ações gerenciais estratégicas.

This article reviews literature on Business Intelligence in healthcare (BI), indexed in databases Scopus, PubMed, Bireme, Web of Science and Google Scholar databases between 2009 and 2014. Search using the descriptors "Business Intelligence", "Health" and their combination returned 339 articles, of which 17 matched the established criteria. Articles were classified as either pertaining to the subject "healthcare" or "management". No subject was predominant. The year 2010 yielded the most results. Canada, Portugal and the United States were the countries of origin for the majority of the authors. Structuring and analyzing information that stems from BI practices allowed for monitoring performance from both care and management points of view. The study confirms that Business Intelligence practices may be applied to the health sector, with an increase of strategic management actions.

Este artículo revisa la literatura sobre "Inteligencia de Negocios" en salud, indexadas en bases de datos Scopus, PubMed y Google Scholar, Bireme, Web of Science entre 2009 y 2014. La búsqueda usando los descriptores de inteligencia de negocios, salud y su combinación resultó 339 artículos, de los cuales 17 cumpliran los criterios establecidos. Artículos fueron clasificados como referentes a la "salud del sujeto" o a "gestión". Ningún tema fue predominante. El año 2010 rindió la mayoría de los resultados. Canadá, Portugal y Estados Unidos fueron los países de origen para la mayoría de los autores. Estructuración y análisis de la información que proviene de BI prácticas permitió monitorear el performance tanto del punto de vista de salud como de gestión. El estudio confirma que las prácticas de Inteligencia de Negocios pueden aplicarse al sector de la salud, con las acciones estratégicas de gestión mejoradas.

Desenvolvimento de material didático dinâmico em odontopediatria para utização na teleodontologia: utilização do software Macromedia Flash / Development of pediatric dentistry educational materials for use in teledentistry: use of macromedia flash software

Atualmente, a internet está sendo utilizada como recurso didático de auxílio às aulas presenciais ou para realização de disciplinas à distância. Na Odontologia, assim como em outras áreas, a Teleducação vem avançando e ocupando espaço nos cursos de graduação e pós-graduação. A Teleodontologia amplia as condições de aprendizagem do aluno, facilitando o contato com diferentes materiais e trazendo oportunidade de escolha do momento de estudo. A preparação de material didático pelos tutores deve ser prioridade, como forma de estimular o aprendizado do aluno. Este trabalho descreve a utilização do software Macromedia Flash® para desenvolvimento de material didático dinâmico relativo à progressão da lesão de cárie e traumatismo dentário, executado por duas alunas da turma de pós-graduação em Odontopediatria da Faculdade de Odontologia da USP...

Currently, websites are being widely used as a resource to support traditional teaching lessons or for long distance teaching. In dentistry, as well as in other areas, teleeducation is moving forward and taking up space in undergraduate and graduate courses. Teledentistry extends the student's learning, since it enables contact with different materials and offers the opportunity to study at the most appropriate moment. The development of dynamic educational material by tutors should be a priority, as a way to stimulate student's learning. This paper describes the use of Macromedia Flash® software used to development educational materials on the progression dental carious lesions and dental trauma. These were developed by two pediatric dentistry is graduate students at the Faculty of Dentistry at USP...

Avaliação da superfície dentinária com o microscópio clínico após remoção de retentor intra-radicular utilizando o ultra-som / Evaluation of dentinal surface with clinical microscope after intra-radicularretainer removal using ultrasound

Objetivo: Avaliar o tempo despendido e possíveis linhas de fissura, trincas e outros danos causados na superfície dentinária ao redor do retentor intra-radicular submetido à vibração ultra-sônica para a sua remoção, utilizando o microscópio clínico. Métodos: Foram utilizadas 15 raízes de incisivos centrais inferiores bovinos, portadoras de retentores intra-radiculares Flexi-Post nº 3 cimentados com o cimento resinoso RelyX CRA® e incluídas em um alvéolo artificial, envoltas com uma camada de silicone. Os retentores foram submetidos à vibração ultra-sônica com o aparelho ENAC modelo EO-5 na sua potência máxima e, após a remoção, foi realizada uma avaliação a olho nu e outra com o microscópio clínico nos aumentos de 5, 8, 12,5 e 20 vezes. Resultados: Os resultados mostraram que nenhuma superfície dentinária apresentou linhas de fissura, trincas ou outros danos, e que o tempo médio para remoção dos retentores foi de 13,25 minutos. Conclusão: O ultra-som demonstrou ser um aparelho eficaz e seguro para a remoção de retentores intra-radiculares.

Objective: To evaluate the time spent and possible fissure lines, fractures and other damage caused on the dentinal surface around the intra-radicular retainer submitted to ultrasonic vibration to remove it, using a clinical microscope. Methods: The roots of 15 bovine mandibular central incisors were used. These contained Flexi-Post No. 3 intra-radicular retainers cemented with RelyX CRA® resinous cement and were included in an artificial alveolus, surrounded by a layer of silicone. The retainers were submitted to ultrasonic vibration with the ENAC model EO-5 appliance at maximum power, and after removal, an evaluation was made by the naked eye, and another with a clinical microscope, at magnifications of 5, 8, 12.5 and 20 times. Results: The results showed that no dentinal surface presented fissure lines, cracks or other damage, and that the mean time for removal of the retainers was 13.25 minutes. Conclusion: Ultrasound was shown to be an efficient and safe appliance for intra-radicular retainer removal.

Método de captura e utilizaçäo de imagem digital direta (IDD) com finalidade didática em Odontologia / Method for the capture and utilization of direct digital image (DDI) for didactic purposes in dentistry

Uma técnica simples de digitalizaçäo dos cortes dentais com finalidade didática em Odontologia é apresentada pelos autores. A técnica é de fácil reproduçäo, baixo custo e resultados de alta qualidade