Comparative analysis of three rotary instruments used for coronal pre-enlargement in radicular dentin thickness and root canal area of mandibular molars

Purpose: The purpose of this study was to evaluate the increase of the cervical area and dentin thickness in mesial and distal walls of the mesial canals from mandibular molars after the use of LA Axxess (LA), CP Drill (CP) and Gates-Glidden (GG) rotary instruments. Material and Methods: Sixty root canals from thirty mandibular first molar were sectioned 3 mm below the cement-enamel junction, divided in 3 groups (n = 20 root canals, each) according to rotary instrument used, and the cervical images were captured before and after pre-enlargement instrumentation. The increase of the instrumented cervical area (mm2) and the dentin removal thickness (mm), at mesial and distal walls were calculated using Image tools software, by comparison of images. Data were analyzed by ANOVA and Tukey tests (p=0.05). Results: All rotary instruments promoted thickness reduction in dentin walls. In mesial wall, all rotary instruments promoted similar thickness reduction of dentinal wall and did not differ from each other (p>0.05). In distal wall, LA Axxess instrument promoted higher dentin thickness reduction than other groups (p<0.05). The three rotary instruments promoted different increase at the instrumented cervical area (p<0.05), LA promoted the highest increase area and GG and CP presented similar results. Conclusion: LA 20/0.06 promoted the highest thickness reduction in distal wall and increase of cervical area of root canal. On the other hand, CP was the safest instrument, with lower dentin removal of distal wall and similar increased area to GG.

Cell membrane integrity of candida albicans after different protocols of microwave irradiation

To evaluate the ability of low time microwaveexposureto inactivate and damage cell membrane integrity of C. albicans. Materials and Methods: Two 200ml C. albicans suspensions were obtained. Sterile dentures were placed in a beaker containing Experimental (ES) or Control suspensions (CS). ES was microwaved at 650 W for 1, 2, 3, 4 or 5 min. Suspensions were optically counted using Methylene blue dye as indicative of membrane-damaged cells; spread on Agar Sabouraud dextrose (ASD) for viability assay; or spectrophotometrically measured at 550nm. Cell-free solutions were submitted to content analyses of protein (Bradford and Pyrogallol red methods); Ca++ (Cresolphthalein Complexone method); DNA (spectrophotometer measurements at 260nm) and K+ (selective electrode technique). Data were analyzed by Student-t test and linear regression (α=0.05). In addition, flowcytometry analysis of Candida cells in suspensionwas performed using propidium iodide. Results: All ES cells demonstrated cell membrane damage at 3, 4 and 5 min,viable cells were nonexistent at 3, 4 and 5 min ES ASD plates and optical density of ES and CS was not significantly differentfor all exposition times. ES cells released highcontents of protein, K+ , Ca++ and DNA after 2 min exposition when compared to that of the CSs. Similar results were observed with flow cytometry analysiswith regard to the periodsof microwave exposure. Conclusions: Microwave irradiation inactivated C. albicansafter 3min and damaged cell membrane integrity after 2 min exposition.

Vagueza e indeterminação na noção de história de Arendt

The purpose of this paper is to present the thought of Hannah Arendt on the historical narrativa, as the reading of theories of cognition and the sign of Peirce. It is not categorial parallelism, but to highlight some approximation in order to conceive the thought and language. For both, communication is important in the formation of your thoughts. While one has broader interests, the other directs its efforts to human society, politics and history. However, both authors agree on the fallible nature o four opinions, and reject the traditional philosophies, advocates of transcendental schemes, which are imposed, silencing the experience, the source o four opinions. The proposal, to seek the experience, the origino f opinions, ou interpretations, excluding transcental rules, but the community is what gives the character of the narrative indeterminacy. They do not escape from the temporal and social factors. Therefore, are subject to what gives them legitimacy, ie, freedom.

Involvement of alpha(1B)-adrenoceptors in the anti-immobility effect of imipramine in the tail suspension test

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Maximal Oxygen uptake cannot be determined in the incremental phase of the lactate minimum test on a cycle ergometer

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

Synthesis, characterisation and thermal behaviour of solid state compounds of 4-methylbenzylidenepyruvate with heavier trivalent lanthanides and yttrium(III)

Solid state Ln-4-Me-BP compounds, where Ln stands for heavier trivalent lanthanides (gadolinium to lutetium) and yttrium(III) and 4-Me-BP is 4-methylbenzylidenepyruvate (CH3-C6H4-CH=CH-COCOO-), have been synthesized. Elemental analysis, complexometry, X-ray powder diffractometry, infrared spectroscopy and simultaneous thermogravimetry-differential thermal analysis (TG-DTA), have been used to characterise and to study the thermal behaviour of these compounds. The results provided information concerning the stoichiometry, crystallinity, ligand's denticity, thermal stability and thermal decomposition. © 2002 Elsevier Science B.V. All rights reserved.

Impacto do controle glicêmico sobre as complicações associadas ao diabetes mellitus na osseointegração

The increased prevalence of diabetic individuals has become a public health problem. Diabetes Mellitus is a metabolic disorder characterized by an increase in plasma glucose levels. It impairs the physiological equilibrium in utilization of carbohydrate by tissues. The persistent hyperglycemia can produce deleterious effects on bone formation due the microvascular complication. The present paper reviews the bibliography linking the impact of glycemic control at complications associated at diabetes mellitus on osseointegration. In experimental models of diabetes it was observed a reduced level of bone-implant contact. This failure can be reduced by means of hyperglycemia control. Also, several studies point the beneficial effect of coated implant on osseointegration process. It is necessary to take special care into account for the placement of implants in diabetic patient and improve the percentages of implant survival. A rigorous control of plasma glycaemia, together with other measures, like as absence of chronic complications, good oral hygiene and regular medical follow-up has been related to rising the percentages of successful in diabetic patients.

O papel da Universidade Aberta à Terceira Idade na educação ambiental

Population aging and environmental protection have gained special importance after the economic, demographic and social recent changes. The objective of this paper was to promote theoretical and reflective review with emphasis on convergence between sustainable development and educational activities promoted by the University of the Third Age. We conducted a literature review to give full articles from the descriptors: aged, sustainable development indicators and environmental protection, published in English, Spanish and Portuguese, between January 1994 and June 2014, in national and international journals on the basis LiIlacs, Bireme and Medline. We used systematic data collection for sample analysis. The results indicate that the University of the Third Age develops teaching, research and extension, through actions based on aging and educational assumptions. In this context, environmental education is presented as a pedagogical process capable of awakening the critical capacity of the elderly, making it active social worker and leading him to a cultural design which ensures establishment of sustainable harmonious relationship with nature. It was concluded that the University of the Third Age contributes to initiatives that emphasize the relationships between systems and economic processes or social and natural processes, generating the construction of social values, knowledge, skills, attitudes and skills aimed at the conservation of the environment.

Wettability behavior of nanotubular TiO2 intended for biomedical applications

Nanotubes have been subject of studies with regard to their ability to promote differentiation of several cells lines. Nanotubes have been used to increase the roughness of the implant surfaces and to improve bone tissue integration on dental implant. In this study TiO2 nanotube layer prepared by anodic oxidation was evaluated. Nanotube formation was carried out using Glycerol-H2O DI(50-50 v/v)+NH4F(0,5 a 1,5% and 10-30V) for 1-3 hours at 37ºC. After nanostructure formation the topography of surface was observed using field-emission-scanning-microscope (FE-SEM). Contact angle was evaluated on the anodized and non-anodized surfaces using a water contact angle goniometer in sessile drop mode with 5 μL drops. In the case of nanotube formation and no treatment surface were presented 39,1° and 75,9°, respectively. The contact angle describing the wettability of the surface is enhanced, more hydrophilic, on the nanotube surfaces, which can be advantageous for enhancing protein adsorption and cell adhesion.

O cuidador de paciente com neoplasia cerebral maligna primária: os desafios do cuidado

Patients with primary malignant brain tumor endure several motor and cognitive dysfunctions, demanding the presence of a caregiver even more because the time necessary for their assistance increases considerably. Usually this task is performed by a family relative, whose activities include taking care of the patient’s personal hygiene, escorting them to medical appointments, managing their money and performing their housework. All of this overwhelms the caregiver both physical and psychologically. This bibliographic research intends to analyze the role in which a caregiver plays in the quality of life of those kinds of patients, the complications of such task, the caregivers’ needs and the daily life of those terminal patients. It was used CAPES, PubMed and Google Academic databases for researching articles related to family caregivers who assisted adult patients with primary malignant brain tumor. The study concluded that being a caregiver of patients in such conditions harms one’s quality of life, with consequences such as stress, insomnia, financial problems and lack of social support. Theirs needs include: having someone to talk to about the matter, attending programs for reducing stress and increasing their knowledge about the disease. In advanced phases of the condition, the patient shows great mobility problems, aphasia and regular seizures, which end up overwhelming the caregiver. The level of quality of life found was above other types of cancer’s caregivers. Therefore, they represent a group with special needs, which should be especially handled by health professionals.

O momento oportuno para a abordagem ortodontica no tratamento da classe II

Because it still brings polemic among the professionals, it was mention once more, in this literature review, the theme that aims to define the appropriate timing to approach the bad occlusions of Class II, and also when it would the right opportunity to treat them, in way that would convey to the patient consistent, stable results in a long term. These are important aspects to be taken into consideration by orthodontists, either by those who defend the early treatment or by those who defend the late treatment. Therefore, the present study aims to aid the clarification of daily doubts regarding this aspect.

O conhecimento das funções e a formação dos auxiliares odontológicos atuantes no serviço público de saúde de municipios do noroeste paulista

The aim of this study was to evaluate the knowledge of Hygienists (TSB) and Dental Auxiliaries (ASB) in relation to their roles regulated by Law number 11.889, December 24th, 2008, and formation of them and capacitating received before they had been admitted in public health system. It’s a transversal and descriptive study where the target population were TSB and ASB (N=76) that works in public service from 5 cities of the DRS II-SP. Data collection was performed by semi-structured instrument with opened and closed questions. The answer rate was 90.79% (n=69). The results showed that the majority of professional know part of their duties (56%) Near half of them had formation course (47.8%). In relation to information received during formation courses, 80% stated had received all information necessary to actualization of knowledge, however, 84% stated to feel necessity to actualize their knowledge to develop their works, 58% of professionals said that they don’t receive capacitating after they had been admitted. It was possible to conclude that the majority of professionals know part of their roles, has formation course and the majority don’t receive capacitating when they are admitted in public health system, however, it was observed that a part of them don’t have specific formation yet and don’t know part of their roles according to current legislation

Estresse no ambiente de trabalho

Stress relates to the broad and generalized body's responses to various environmental, physical and social situations. It is the force that drives the emotions and motives (desires), but is also the cause of the wear and tear of human existence. This study aims to investigate the stressors in administrative technical servers Univ. Estadual Paulista - UNESP, Bauru, as well as on companies providing service within the perimeter of the campus. Was used as a methodology, literature and field research, a questionnaire was applied in order to reach those goals. The profiles of employees who participated in the survey were: both sexes, adults, young people with different educational levels, varying levels of marital and socioeconomic status. The main stressors mentioned by the employees were: workload, dissatisfaction in the workplace, pressure boss or colleagues, as they bring consequences, fatigue or drowsiness, affecting the work environment and mostly family. Physical symptoms of stress are fatigue, difficulty relaxing and headache, and backache. And the psychological symptoms are verbalized concern, agitation, aggression, dissatisfaction, and forgetfulness and feeling of lack of time. It was concluded that these factors negatively affect the quality of life in the work of these employees, interfering with your work, family and socio-emotional life.

Diterpenos tetranorlabdanos e isocumarinas produzidos por Botryosphaeria parva, um fungo endofítico em Eugenia jambolana Lam. (Myrtaceae)

Pós-graduação em Química - IQ

Ex vivo torsional properties of the Targon Vet Nail System in canine femurs: comparison with the 2.4 mm LC-DCP Plate

Pós-graduação em Cirurgia Veterinária - FCAV