434 resultados para Retalhos Cirúrgicos


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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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OBJECTIVE: The aim of this study was to compare by means of McNamara as well as Legan and Burstone's cephalometric analyses, both manual and digitized (by Dentofacial Planner Plus and Dolphin Image software) prediction tracings to post-surgical results. METHODS: Pre and post-surgical teleradiographs (6 months) of 25 long face patients subjected to combined orthognathic surgery were selected. Manual and computerized prediction tracings of each patient were performed and cephalometrically compared to post-surgical outcomes. This protocol was repeated in order to evaluate the method error and statistical evaluation was conducted by means of analysis of variance and Tukey's test. RESULTS: A higher frequency of cephalometric variables, which were not statistically different from the actual post-surgical results for the manual method, was observed. It was followed by DFPlus and Dolphin software; in which similar cephalometric values for most variables were observed. CONCLUSION: It was concluded that the manual method seemed more reliable, although the predictability of the evaluated methods (computerized and manual) proved to be reasonably satisfactory and similar.

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The proposal of this study was to compare a wound healing between conventional suture and vaporization with CO2 laser in rats skin. ln such case 24 rats were utilized, making two longitudinal incisions in dorsum by scalpel. ln the left side incision the wound was sutured with nylon thread. ln the right side incision the wound were close by approach and vaporized with C02 laser, defocusing, 8 watts in continuous mode. The wound healing was followed by clinical photographic taking at the times: immediately after the procedure, 24 hours, 3, 7, 14, and 21 days. The results showed an early delay of reparation in healing vaporized in comparison with the sutured one, however occurred 21 days both repair tissue showed the same clinical characteristic. This results suggested that the C02 laser can be used by eventual substitute of suture.

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Pós-graduação em Ciências Odontológicas - FOAR

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This research objective was to verify the tissues reactions obtained, in surgical experimental bone defect, after the etil cyanoacrylate chemical adhesive application in rats parietal bones. 1t was investigated the acceptance or no acceptance of the tissues surround the bone defect in which was placed the etil cyanoacrylate and the control bone defect. The specimens were submitted to light microscopic analysis. 24 adults rats were used (Rattus norvergicus, albinus, Wistar) with the average weight to 300 gr. and were divided in two groups: treated and control. After the bone defects were realized, etil cyanoacrylate was placed over one of the defects at the parietal bone (treated group). On the other defect nothing was placed and it was used like control group. After 24 hours, 3,5,7,30 and sixty days after surgery, for animals of each group were sacrificed. The bone samples were removed and fixed in 10% formalin during 72 hours and analyzed using light microscopy. The results showed that the acute inflammatory responses was more observed at lhe treated group than the control group. The chemical adhesive was observed until 60 days follow the surgery and the tissues around it present normal appearance. The chemical adhesive, etil cyanaocrylate, did not impede at the bone repair process

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Introduction: The stair-climbing test (SCT) is considered a submaximal test of simple implementation and easy access, which assesses the individual’s functional capacity. Although widely used in surgical patients, there is no standardization regarding the height of the stair and verbal stimulus. Objectives: It was determine if verbal stimulus changes the stair-climbing time (SCt) in individuals over 50 years-old. We compared oxygenation, blood pressure, pulse, respiratory rate and Borg scale between SCT performed with and without stimulation. Methods: We evaluated individuals with ages greater than 50 years-old that performed two STC (with and without verbal stimulation), in the stair with 44 steps, achieving 7.04 m in height and recording the time to climb the stair. The systolic blood pressure (SBP) and the diastolic blood pressure (DBP), respiratory rate (RR), pulse, oxygen saturation (SpO2 ) and Borg scale were evaluated before and after the tests. The time in the SCT with and without stimulation were compared using the Student test-t and the other variables were compared using the ANOVA test (p<0.05). Results: The average age was 59.75±6,40 years old in the 21 evaluated individuals. The time in the SCT without stimulus was significantly higher than the one with stimulus. The SBP, pulse, RR and Borg scale were significantly increased when compared to the SCT with and without stimulus. Oxygenation and DBP didn´t have significant differences at any time of the study. Conclusions: The time in the SCT was lower when performed with verbal stimulus. The SBP, pulse, RR and Borg scale changed significantly after the SCT with and without stimulus, remarking that this change was greater in the SCT with stimulus.

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A Ilustração Científica é um trabalho que consiste na representação fiel de um material biológico determinado, respeitando-se todas as medidas, proporções e contraste de cores, mesmo que em preto e branco. Por isso, a capacidade de observação é uma qualidade indispensável para que se tenha um bom resultado. Podem ser desenhos de materiais vivos, extintos, arqueológicos e até processos cirúrgicos e devem ser claro em significado, não poluído e que não provoque nenhum tipo de incompreensão ou dúvidas. Ela é altamente utilizada no meio acadêmico tendo um vasto campo de aplicação, variando desde trabalhos mais simples e esquemáticos aos mais complexos com alto nível de acabamento e detalhamento. Independentemente à técnica, as ilustrações científicas ainda são uma ferramenta de extrema importância e de grande utilização, sendo muito solicitadas por pesquisadores, que desejam enriquecer seus trabalhos, torná-los mais explicativos, mais claros, e mais didáticos. Por mais que se tenha a possibilidade das fotografias modernas, um desenho empregando técnicas tradicionais como acabamento é totalmente indispensável, já que a foto, por mais sofisticada e cheia de recursos que possua a máquina, não consegue transmitir todos os detalhes e estruturas que se deseja em uma mesma fotografia. O artista tem a liberdade de montar uma prancha com aquilo que o pesquisador precisa, usando sua percepção visual e destreza para reproduzir com exatidão o material em questão. Recursos digitais, ao contrário do que muitos acreditam, não tiraram o espaço das técnicas tradicionais, mas veio como mais uma opção de ferramenta de trabalho que, aliás, para usá-la é necessário saber desenhar igualmente àquele que não se utiliza desse recurso. O tempo passou, as sociedades mudaram e as representações...(Resumo completo, clicar acesso eletrônico abaixo)