985 resultados para Resinas Compostas


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Pós-graduação em Engenharia Civil - FEIS

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Pós-graduação em Odontologia Restauradora - ICT

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Pós-graduação em Ciências Biológicas (Botânica) - IBB

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Pós-graduação em Odontologia - ICT

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Aiming to investigate in vitro the behavior of esthetic veneers placed in crows and made of the laboratory resins Artglass and Targis when submitted to insertion and removal of circunferential cobalt-chromium clasps, 24 veneer crowns were made (twelve with Artglass (Heraeus Kulzer) and twelve with Targis (Ivoclar Vivadent)), as well as the respective cobalt-chromium clasps. The crowns were then submitted to five thousand cycles of clasps insertion and removal, using a proper device. Using the verification of the force necessary to remove the clasps over the crowns during the experiment, the clasps and crowns mass variation, and the macroscopic inspection of the veneers, one may conclude that the veneers did not show a significant variation of the force required to remove the clasps over the crowns; they show a little amount of abrasion, possible to detect using a visual inspection and they show a little and variable amount of mass loss, less for that made with Artglass (average of 0,002g) and greater for that made with Targis (average of 0,006g)

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In the present work it was studied the behavior of four water bath curing cycles of heat activated acrylic resin considered as long duration (I – 65ºC for 30 min;50ºC for 23h and 30min; and 100º C for 1h; II- 50ºC for 24h and the rapid cycle), compared to the known long time curing cycle (9 hours for 72ºC) and short curing cycle (1 h for 65ºC; 30 min to elevate at 100º C and 1:00 to 100º C). Analysis consisted of observations and verification of the residual monomer, weight alterations, dimensional, dimensional lineal, porosity and hardness to determine material performance. The results pointed out that residual monomer presented statistical significant differences in the factor storage and interaction among the factors cycle X storage for weight alteration; statistical significant differences for the factor storage for lineal dimensional alterations, without significant differences for hardness. Porosity was verified in minimum degree in the cycle III and in appreciable amount in the cycle IV

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

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Introduction: Baseball is a Sport disputed by two teams composed at least by nine players which compete between themselves in a game of six innings in the amateur game, for children up to 10 years old. Objective: The objective is to compare the movement degrees of the shoulder joint between the dominant and the non dominant shoulder. Methods: Eleven male subjects were assessed (8,63 ± 0,67 years old) whom practiced baseball at the Nikkey Club of the city of Marília – SP. All of the subjects were assessed by the same examiner, whom measured the range of motion (ROM) of both glenohumeral joint. The Student t test was used for the comparison of the shoulders, with level of significance of 5% (p≤0,05). Results: The subjects presented significant differences on the external rotation movement (p= 0,014) between the dominant shoulder (63,63 ± 12,92°) and the non dominant shoulder (55,45 ± 16,27°), and in the internal rotation movement (p= 0,001) between the dominant shoulder (32,90 ± 5,68°) and the non dominant shoulder (40,72 ± 5,74°). Conclusion: The results obtained in this study, on the experimental conditions utilized, allow us to conclude that the practice of baseball influence the range of motion of external rotation and internal rotation of the dominant shoulder, with increased external rotation, and a decreased internal rotation, provoking instability of the shoulder joint.

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This study was aimed to analyze a procedure that makes the description of pictures in printed text from a book that promotes accessibility for blind people. In addition, the study was aimed to analyze the reformulations suggested by the judges and the index of agreement between researcher and judges. The descriptions were submitted to judges to evaluate the content of the material. The results were obtained through the analysis of two assessments: 1) agreement rate ‒ between the researcher and judges A and B, and between judge A and judge B and 2) analysis of the suggested reformulation. In quantitative terms, the results indicated that the material described achieved a high reliability. In qualitative terms, the reliability achieved represents the quality of the material offered, with well structured descriptions where writing meaning is equivalent to image information, fulfilling the purpose to present in printed text the elements represented in the pictures, effectively conveying their meaning.

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The influence of the environment on psychomotor development of children is evidenced in many studies. Many factors can threaten children’s development and hinder the children with regard to functional activities. Objective: The objective of this research was to investigate the possible effects of urban and rural environment on the functional performance of children under six years old. Methods: The study included 30 children divided into two groups, one group consisted of 15 children of both genres with a mean age of 44.13 ± 20.97 months, residing in urban area and another for 15 children, both sexes with a mean age of 44.33 ± 20.91 months, residing in rural areas. All were tested using functional Pediatric Evaluation of Disability Inventory (PEDI), which is based on an evaluation trial, conducted through structured interviews with those responsible for the child. This test outlines the functional profi le of children in three performance areas: self-care, mobility and social function, evaluated in three parts (functional skills, caregiver assistance and modifi cations to the environment). In this study we used the parts I (funcional skills) and II (caregiver assistance) in three areas: self-care, mobility and social function. The collected data were analyzed by means of the Mann - Whitney test, with the level of signifi cance at p ≤ 0.05. Results: The results show no signifi cant difference in the areas of self-care and mobility, both in relation to functional abilities when the caregiver assistance. In the area of social function, there was a lower performance of children living in rural areas, in functional abilities (p = 0.027) and caregiver assistance (p = 0.028). Conclusion: Based on this information, we can conclude that children who live in rural areas have a worse development of the social functions of children living in urban areas.