Apical Extrusion of Debris Produced during Continuous Rotating and Reciprocating Motion.

This study aimed to analyse and compare apical extrusion of debris in canals instrumented with systems used in reciprocating and continuous motion. Sixty mandibular premolars were randomly divided into 3 groups (n = 20): the Reciproc (REC), WaveOne (WO), and HyFlex CM (HYF) groups. One Eppendorf tube per tooth was weighed in advance on an analytical balance. The root canals were instrumented according to the manufacturer's instructions, and standardised irrigation with 2.5% sodium hypochlorite was performed to a total volume of 9 mL. After instrumentation, the teeth were removed from the Eppendorf tubes and incubated at 37°C for 15 days to evaporate the liquid. The tubes were weighed again, and the difference between the initial and final weight was calculated to determine the weight of the debris. The data were statistically analysed using the Shapiro-Wilk, Wilcoxon, and Mann-Whitney tests (α = 5%). All systems resulted in the apical extrusion of debris. Reciproc produced significantly more debris than WaveOne (p < 0.05), and both systems produced a greater apical extrusion of debris than HyFlex CM (p < 0.001). Cross section and motion influenced the results, despite tip standardization.

[Visual behavior and socioeconomic and demographic profile of the premature newborns from Federal University of Pernambuco Maternity (UFPE)]. / Comportamento visual e perfil socioeconômico e demográfico de recém-nascidos prematuros da Maternidade do Hospital das Clínicas de Pernambuco-UFPE.

OBJECTIVE: To characterize the behavior of premature newborns in the first year of chronological age. METHODS: This is a cross-sectional descriptive study, bound to a longitudinal study titled: "Comparison of visual behavior on the first quarter of year of life of premature nursling born at two maternities of Recife/PE." The sample was composed by 52 premature newborns selected from June, 2007 to June, 2008 from the Maternity of the Federal University of Pernambuco (UFPE). Biological, socioeconomic and demographic data was collected through medical records and interviews with progeny. Newborns were evaluated by the Assessment Guide of Visual Ability in Infants. RESULTS: Most of the newborns were male at a gestational period between 33 weeks and 36 weeks and 6 days, showed a good visual behavior development for the age researched, and most of the families showed good socioeconomical and demographic profile. Besides, it was possible to detect ocular signs in 19% of sample, that were referred to an Ophthalmology Service. CONCLUSION: This study results point out the method like an important key in the early detection and visual screening for premature nursling since the first month of life and it led us to believe that clinical view for occupational therapy intervention must be focused not only on biological risks but also at the influence environment in newborn performance.

Comportamento visual e perfil socioeconômico e demográfico de recém-nascidos prematuros da Maternidade do Hospital das Clínicas de Pernambuco - UFPE / Visual behavior and socioeconomic and demographic profile of the premature newborns from Federal University of Pernambuco Maternity (UFPE)

OBJETIVO: Caracterizar o comportamento visual e perfil socioeconômico e demográfico de recém-nascidos prematuros no primeiro mês de idade cronológica. MÉTODOS: Estudo descritivo de corte transversal, aninhado a um estudo longitudinal intitulado: "Comparação do comportamento visual no primeiro trimestre de vida de lactentes nascidos pré-termo em duas maternidades da cidade do Recife/PE". A amostra foi composta por 52 recém-nascidos prematuros recrutados de junho de 2007 a junho de 2008, na Maternidade do Hospital das Clínicas da Universidade Federal de Pernambuco. Foram coletados dados biológicos, socioeconômicos e demográficos dos recém-nascidos e famílias, por meio de consulta aos prontuários e entrevista com as genitoras. Para caracterizar o comportamento visual dos recém-nascidos utilizou-se o Método de Avaliação do Comportamento Visual de Lactentes. RESULTADOS: Observou-se que a maioria dos recém-nascidos era do sexo masculino, com idade gestacional entre 33 semanas e 36 semanas e 6 dias, apresentaram comportamento visuomotor adequado para a faixa etária pesquisada e que a maioria das famílias apresentava boas condições socioeconômicas e demográficas. Ainda foi possível detectar em 19 por cento da amostra sinais oculares, os quais foram encaminhados para um Serviço de Oftalmologia. CONCLUSÕES: Os resultados apontam o método como um instrumento importante na triagem visual, possibilitando a detecção oportuna de alterações visuais em lactentes prematuros desde o 1º mês de vida. O olhar clínico da avaliação terapêutica ocupacional de lactentes deve voltar-se para a observação do comportamento considerando não apenas os riscos biológicos, mas também a influência que os fatores ambientais e sociais exercem sobre o desempenho funcional da criança.

OBJECTIVE: To characterize the behavior of premature newborns in the first year of chronological age. METHODS: This is a cross-sectional descriptive study, bound to a longitudinal study titled: "Comparison of visual behavior on the first quarter of year of life of premature nursling born at two maternities of Recife/PE." The sample was composed by 52 premature newborns selected from June, 2007 to June, 2008 from the Maternity of the Federal University of Pernambuco (UFPE). Biological, socioeconomic and demographic data was collected through medical records and interviews with progeny. Newborns were evaluated by the Assessment Guide of Visual Ability in Infants. RESULTS: Most of the newborns were male at a gestational period between 33 weeks and 36 weeks and 6 days, showed a good visual behavior development for the age researched, and most of the families showed good socioeconomical and demographic profile. Besides, it was possible to detect ocular signs in 19 percent of sample, that were referred to an Ophthalmology Service. CONCLUSION: This study results point out the method like an important key in the early detection and visual screening for premature nursling since the first month of life and it led us to believe that clinical view for occupational therapy intervention must be focused not only on biological risks but also at the influence environment in newborn performance.