Universidade de Ribeirão Preto

About: Universidade de Ribeirão Preto is a education organization based out in Ribeirão Preto, Brazil. It is known for research contribution in the topics: Medicine & Population. The organization has 840 authors who have published 913 publications receiving 12089 citations. The organization is also known as: University of Ribeirão Preto.

Os distúrbios miofuncionais orofaciais na literatura odontológica: revisão crítica

Abstract: Muitos estudos evidenciam a relacao entre a forma e as funcoes do sistema estomatognatico. Por esta razao, o objetivo do presente trabalho foi pesquisar em publicacoes da area Odontologica, em lingua portuguesa, como sao considerados os disturbios miofuncionais orofaciais e, por consequencia, como se da a relacao entre a Odontologia e a Fonoaudiologia. Para tanto, o metodo consistiu numa pesquisa bibliografica em periodicos e livros veiculados na area odontologica, reunindo-se vinte e sete publicacoes do periodo de 1984 a 2002. Este levantamento teve como resultado o fato de que a maior parte dos autores relatam a necessidade de favorecer a condicao miofuncional orofacial, visando a correcao e a estabilidade do complexo orofacial. Quando odontologos e fonoaudiologos trabalham em equipe, o papel de cada profissional, bem como os conceitos envolvidos sao apresentados com clareza. Entretanto, alguns autores relatam corrigir a ma oclusao associada as alteracoes musculares e funcionais apenas com aparatos odontologicos. Ainda, ha aqueles que nao apresentam propostas para resolve-los no plano de tratamento. Essa revisao nos levou a conclusao de que ha diferencas nas condutas adotadas pelos odontologos no tratamento de seus pacientes, provavelmente decorrentes de suas formacoes, o que acarreta tambem posturas diferenciadas na interacao com outros profissionais da saude, dentre eles o fonoaudiologo.

Effectiveness of root canal debris removal using passive ultrasound irrigation with chlorhexidine digluconate or sodium hypochlorite individually or in combination as irrigants.

Abstract: AIM The aim of this in vitro study was to evaluate the cleaning capacity of different auxiliary chemical substances energized with ultrasound in radicular dentin using morphologic analysis. METHODS AND MATERIALS Twenty-eight single-canal, mandibular incisors were prepared with the Hero 642 canal preparation system following the sequence: 25/12, 30/06, 35/02, and 40/02, 1 mm from the apex. The specimens were then divided into four groups of seven teeth. During biomechanical preparation the teeth were irrigated with 2 ml of distilled water between files. Each group of specimens (n=7) received a final irrigation with 100 ml of the following irrigants that were activated with ultrasound for 3 minutes: Group 1- distilled water; Group 2- 0.2% chlorhexidine digluconate (CHX); Group 3- 2.5% sodium hypochlorite (NaOCl); and Group 4-the filtrate obtained after combining 0.2% CHX and 2.5% NaOCl. The apical portions of the root canals from each group were then submitted to histological processing and analyzed using optical microscopy. RESULTS Results showed statistical differences between the groups (p<0.01). Groups 1 and 2 (distilled water and 0.2% CHX respectively) were statistically similar in terms of a greater amount of debris, whereas 2.5% NaOCl and the filtrate were more efficient in removal of debris. CONCLUSION There is no additional benefit in terms of debris removal from root canal walls by irrigating with the filtrate obtained from the combination of NaOCl and CHX when compared to using NaOCl alone. CLINICAL SIGNIFICANCE The findings of this study suggest the time and expense of preparing and using a combination of NaOCl and CHX is not warranted compared to using NaOCl alone for root canal irrigation.

Validation for the portuguese language of the simulation design scale

Abstract: Teniendo en cuenta la carencia de herramientas que evaluen los resultados asociados con el uso de la simulacion como estrategia de ensenanza, este estudio metodologico de traduccion y validacion de instrumento tuvo como objetivo traducir y validar para la lengua portuguesa la Simulation Design Scale (Student Version). Despues de completados todos los pasos del proceso de traduccion, el proceso de validacion se llevo a cabo en el contexto de evento acerca del cuidado del paciente critico. Participaron del estudio 103 enfermeros licenciados. La validez y fidelidad de la escala, el patron de correlacion entre las variables, el test de adecuacion de las muestras y el test de esfericidad presentaron resultados satisfactorios. Por no haber conexion entre los agrupamientos establecidos en el analisis factorial exploratorio, se opto por seguir la division establecida por la version original. La escala fue denominada Escala do Design da Simulacao [en Portugues]. Se concluye que la escala posee buenas propiedades psicometricas y potencial apropiado, sin embargo, futuras investigaciones son necesarias para su consolidacion.

Formação de subprodutos orgânicos halogenados nas operações de pré-oxidação com cloro, ozônio e peroxônio e pós-cloração em água conténdo subtância húmica

Abstract: When chlorine is used as preoxidant, the formation of halogenated organic byproducts found in water treated and distriduted to the population, are: trihalometane, haloacetic acids, haloaldehyde, haloketone, halophenol and halopicrin. This research was performed to evaluate the formation potential of 22 byproducts using the following preoxidants: chlorine, ozone and peroxone. The formation of byproducts was simulated in water prepared with the addition of humic substances extracted from peat soil by the use of preoxidants, coagulation, filtration, and post-chlorination. Byproducts have quantified by gas chromatography with electron capture detector. The results obtained showed that the use of alternative preoxidants, such as ozone and peroxone, associated with coagulation, filtration, and post-chlorination form a low concentration of byproducts.