Avaliação tridensional da precisão das técnicas de moldagem para próteses implantossuportadas sobre pilares alinhados e não-alinhados

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo do crescimento de nanofitas de céria dopada com gadolínio por sistema de aquecimento por micro-ondas

O óxido de cério (céria) tem atraído atenção devido às suas importantes aplicações, como em células a combustível de óxido sólido, catalisadores de gases de exaustão de automóveis, catalisadores para a obtenção de hidrogênio, bloqueadores de raios ultravioleta, biomateriais, entre outros. Controlar os métodos de síntese da céria é de grande importância para explicar ou prever essas propriedades. Desta forma, o objetivo deste trabalho foi estudar o crescimento de nanofitas de óxido de cério em um sistema hidrotérmico assistido por micro-ondas, no qual 8 min foram obtidas nanofitas com comprimentos próximos a 330 nm, em 130 ºC e pressão de 3 atm. Os resultados colaboram para pesquisas em reformadores para obtenção de etanol e/ou anodos de células combustíveis de óxido sólido.

Partial time use of anterior repositioning splints in the management of TMJ pain and dysfunction: a one-year controlled study

This study aimed at evaluating the effectiveness of partial use of anterior repositioning appliances in the management of TMJ pain and dysfunction when compared to stabilization splints and a control group in a one-year follow-up. Sample was initially constituted by 60 patients, randomly divided into three groups: I- stabilization splints, II- repositioning splints and III- no treatment. The whole sample was evaluated by means of TMJ and muscle palpation, mandibular AROM, analysis of occlusal contacts, joint sounds inspection and Visual Analogue Scale (VAS) for one year; 52 patients composed the final sample. A significant (after 15 days) improvement in pain report (VAS) and palpation index was found for group II (p≤0.01). The occurrence of occlusal alterations as posterior open bite or gross interferences after the splint therapy and increased muscle tenderness were not problems in this study. Similar results in joint noises reduction were observed for the entire sample. It was concluded that controlled partial use of repositioning splints is a beneficial tool in the management of intra-articular pain and dysfunction, with no risks of irreversible occlusal changes.

Imagem por ressonância magnética das articulações temporomandibulares: avaliação da confiabilidade e da validade

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de um traçado computadorizado para a avaliação da articulação temporomandibular em tomografias lineares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avanço máxilo-mandibular e reposicionamento simultâneo dos discos articulares: avaliação tridimensional

Pós-graduação em Ciências Odontológicas - FOAR

Contribuição ao estudo da frequência de sintomas subjetivos, relatados como queixa principal, por pacientes com disfunção craniomandibular

We surveyed subjective symptoms of 600 patients referred to the Occlusion and Craniomandibular Dysfunction Center of the School of Dentistry, Campus of São José dos Campos São Paulo, Brazil. We have only considered those symptoms reported by the patients as major complaints. Our purpose on this project was to draw a profile of the disease considering sex, age and incidence of the symptoms that presented themselves or associated with others. Findings were that we found a significant larger number of women, 82.83%, comparing with 17.17% of men. Most of the patients belonged to the third decade, followed by the fourth and second. The most frequent symptom was pain on TMJ region, 42%, followed by TMJ noises, 26.6%, facial pain, 15.5%, earache, 14.5% and headache, 12.1%. The symptom TMJ noises showed to be statistically more significant in men, while headaches, pain in the neck region and temporary locking were more frequent in women. The most frequent association between two symptoms was: TMJ noises with TMJ pain, earache with headache and TMJ pain with earache. There was no statistical difference between sexes. The most frequent association of three symptoms was: TMJ noises together with TMJ pain and pain or difficulty in chewing

Disfunção craniomandibular e sua correlação com radiografia transcraniana da articulação temporomandibular: estudo comparativo entre indivíduos portadores de sintomas severos pelo índice de helkimo e indivíduos assintomáticos

Pós-graduação em Odontologia Restauradora - ICT

Avaliação Postural em Sujeitos com Disfunção Temporomandibular Submetidos a Tratamento de Terapia Manual

Individuals with temporomandibular disorders (TMD) often have signs and symptoms such as intra-articular pain, muscle spasm, neck pain radiating from others who interfere with this balance. Over time can lead to postural changes and correction of the cervical spine, anterior head and shoulder asymmetry. The aim was to verify the effects of manual therapy on posture in subjects with TMD. Materials and methods: 30 volunteers (mean: 21.43± SD:1.43) of both sexes who had TMD classified according to axis I of the Research Diagnostic Criteria participated in this study. These were photographed in the anterior frontal and sagittal planes for analysis of the following angles (acromion clavicular joint, sternoclavicular joint, orbicular external, corners of the mouthand and protruding head). After, the volunteers were divided into groups ATM (manual therapy in the treatment of temporomandibular joint), Cervical (manual therapy in the treatment of cervical joint) and Control. The Kolmogokov-Smirnov test, followed by ANOVA, considering a significance level of 5% was used. Results: Groups ATM, Cervical and Control were considered homogeneous with respect to the values of the angles measured. These also showed no significant difference between the 1st, 5th and 10th sessions, so the manual therapy techniques applied to the TMJ and Cervical groups were not sufficient to change postural alignment. Conclusion: The postural alignment, the TMD patients evaluated in this study did not change after attending the sessions proposals with manual therapy techniques in the cervical and TMJ.

Um estudo sobre a preparação metalográfica da liga de aluminio AA7075-T6

The increasing technological innovation and demand for materials with better properties boosts research into new materials and new alloys. To do so, aluminum alloys are being developed, among them the AA7075-T6, having many applications in aerospace and military industries, machinery and equipment, molds for plastic injection and structures. To study and understand the properties, characteristics and especially the microstructure of the material, the metallographic preparation is essential. This paper presents new methodologies to achieve the metallography of samples of scrap alloy AA7075-T6, with emphasis on methods of polishing. For the five samples, the best results were those with specific grinding, the samples only going down on the sander. For polishing, the most effective method so far has been using the polishing cloth 16.3, of ATM enterprise, solution of diamond 3 μm, solution of diamond 1 μm, and colloidal solution of OP-S. For the etching, the reactive agent used was phosphoric acid (H3PO4) 85% P.A., as 90% in the proportion of distilled water to 10% acid. The best results were obtained in the attacks of 300 and 240 seconds, revealing the grain boundaries in most areas. Methodologies need more studies and more tests, but the results have proved to be satisfactory

A pluralidade narrativa do cinema e a crítica negligente: estudo de caso : anticristo e melancolia, de Lars Von Trier

The cinematographic language is notedly plural and heterogeneous. There are many filmic elements that “narrate” all the time, in different ways. Besides enumerating some of them, this study seeks to analyse if the criticism is attentive to all of these tools or if it sticks only to some of them. It’s also reflects if this activity uses more objectives or subjectives aspects as basis for its conclusions. Here, a very specific field was chosen: the study is done by a comparative analysis of the reception of Brazilian’s and European’s criticism from two Lars Von Trier’s films, Antichrist and Melancholia. After explaining how the narrative elements are used in the cinema, it’s demonstrated that, in general, the criticism is negligent and does not analyze all of those tools. In some cases, the analysis of some elements is done in a superficial way, so others aspects can be highlighted

Avaliação de métodos de triagem e de detecção fenotípica de ß-lactamase de espectro ampliado (ESBL)

The catalytic function of extended-spectrum β-lactamases can result in high degrees of bacterial resistance to β-lactamic antimicrobials and in the emergence of ESBL among the members of Enterobacteriaceae family, especially Klebsiella pneumoniae and Escherichia coli. This occurs due to the dissemination and emergence of new variants of these enzymes caused by the high utilization of antibiotics like broad-spectrum cephalosporins. The ESBL are β-lactamases capable of conferring bacterial resistance to the penicillins, 1st, 2nd and 3rd generation cephalosporins, and aztreonam (but not cephamycins and carbapenems) through the hydrolysis of these antibiotics. In view of this phenomenon, the exact screening and detection of the producers of ESBL are essential for the appropriate selection of the antimicrobial therapy. The purposes of this study were to evaluate the best antimicrobial for the selection of ESBL producers and to determine the best method for the detection of such microorganisms. We evaluated 200 sequential bacterial samples including the species Klebsiella pneumoniae (56.5%), Escherichia coli (34%), Proteus mirabilis (8.5%) and Klebsiella oxytoca (1%), previously characterized as ESBL producers between February and September 2008 in the Laboratory of Microbiology, Botucatu Medical School - UNESP, Botucatu, São Paulo State, Brazil. To select the ESBL-producer bacteria, we used the disks recommended by CLSI 2008, aztreonam (ATM), cefpodoxime (CPD), ceftriaxone (CRO), cefotaxime (CTX) and ceftazidime (CAZ), besides cefepime (FEP). ESBL production was confirmed by three methods: double disk screening, ESBL Etest®, and Vitek® automated system. The disks employed in the double disk screening were: penicillin associated with β-lactamase inhibitor, amoxicillin-clavulanic acid, and two β-lactamic antibiotics, ceftazidime and cefotaxime...(Complete abstract click electronic access below)

Articulação temporomandibular: anatomia, dinâmica e disfunções temporomandibulares

This study gathered some of the most relevant researches already undertaken regarding the Temporomandibular Joint, presenting descriptions of its anatomy and dynamics, and relating them to the main aspects of joint dysfunctions. Literature recognizes that the Temporomandibular Joint, responsible for lower jaw movements, comprehends the skull base and the jaw bone. Its anatomy and dynamics are of great importance in order to understand the functions of Stomatognathic System as well as to study Temporomandibular Joint Dysfunction. The elements that compose this synovial joint and the bilateral characteristic confer eminent importance to the ATM before the skeleton head, the ability to perform broad movements and high complexity in its operation. It is accepted that the overload of one anatomical structure from the TMJ or other components of the Stomatognathic System leads to Temporomandibular Joint Dysfunctions. These disorders have different etiologies, ranging from malocclusion to emotional stress, and various forms of treatment, which are related in this study

Efectos de los aparatos propulsores mandibulares fijos en la articulación temporomandibular

Fixed mandibular propulsion appliances are an alternative for the treatment of Class II malocclusion in individuals with mandibular deficiency. Since they are fixed appliances, said devices keep the mandible in an anterior-forced position during rest and during all mandibular functions. When a propulsive appliance is used, the lower jaw is displaced forward and downward. This movement leads to a new position of the condyle, which can, ultimately affect the normal functioning of the temporomandibular joint (TMJ). The aim of this paper was to review effects of fixed mandibular propulsive appliance on TMJ. Inclusion criteria considered studies on animals or humans using TMJ radiography, computed tomography, and magnetic resonance imaging. Studies confirm a favorable relation between condyle and glenoid fossa following treatment with fixed mandibular propulsion appliances.

Influencia dos hábitos de sucção na manifestação de dor temporo-mandibular: revisão sistemática

Objective: To assess the attitudes and knowledge about hepatitis by scholars and dental practitioners from Recife and its metropolitan region. Method: The research protocol was submitted and approved by the Ethics and Human Research Committee of the Federal University of Pernambuco. There were included 230 undergraduate students in dentistry and 104 dentists who exercise their professional activity in Recife and its Metropolitan Region. They signed a consent form and answered a questionnaire, the evaluative instrument, with objective questions about biosafety, transmission of hepatitis and sexually transmitted diseases. Results: About the types of hepatitis 133 (57.8%) students and 61 (58.7%) professionals claimed to know the types A, B and C. Concerning transmission 31 (13.5%) students and 25 (24.0%) professionals said that the main route of transmission were sexual and bloodstream respectively. Relating to imunization 221 (96.1%) students and 99 (95.2%) professionals reported that have been vaccinated against hepatitis B, however, only 126 (54.8%) students and 55 (52.9%) professionals have followed the immunization’s schema. Regarding the cleaning of the office equipment, 18.7% of the students replied that they do not know who does it. 56.7% of professionals said that it was performed with alcohol 70 ° GL.Conclusions: The findings indicate that there is a concern for biosafety but the knowledge about the forms of hepatitis transmission and biosecurity measures need to be better settled.