FO - Faculdade de Odontologia

URI Permanente desta comunidade

http://200.137.215.59/tede/handle/tde/140

Navegar

Agora exibindo 1 - 20 de 30

Análise das relações de poder na política nacional de saúde bucal: o dito e o visto
(Universidade Federal de Goiás, 2008-04-08) ANDRADE, Flávia Reis de; MARCELO, Vânia Cristina; http://lattes.cnpq.br/6650368201862218
In order to consolidate the principles underlying the Brazilian Unified Health System (Sistema Único de Saúde SUS) and with the aim of acting on evidence arising out of epidemiological research in dental health, the Ministry for Health decided to structure the National Policy for Dental Health (NPDH). This study sets out to analyze the power relationships in the drawing up of the NPDH. It is a descriptive study which uses the qualitative method as its approach. The data was obtained through individual semi-structured interviews with 15 participants. The content analysis technique was used for the interpretative examination of the material transcribed. The following categories emerged: participant actors, type of participation, initial outline, (re)discussion lists, political context, present impasses and perspectives. The participant actors were divided into two groups: individual and collective. The former, a coherent group, was made up of people who identified with the victorious political project of the 2002 presidential elections, and who had undoubtedly struggled to build the SUS. It was the task of the second group to give approval to what the first had expounded. The interviewees were influential in the shaping of the NPDH, both through the research they undertook (academy) and through the movements in which they participated (services, militancy). It is impossible to define precisely the moment when the drawing up of the NPDH started, as it was a slow process taking place over at least a quarter of a century. The most visible milestone for the beginning of the broad official and unofficial debates which outlined the Policy, was the result of a series of reflections starting with the Movement for Sanitary Reform. Thus, the NPDH is made up of a set of deliberations arising out of different moments of discussion, but especially the meeting held in the Municipality of São Paulo, following on the election results of Luiz Inácio Lula da Silva s campaign for Presidency of the Republic in 2002. This meeting defined the proposal presented to the members of the Governmental Transition Commission and it marked the beginning of a period of intense normative work by the Health Ministry s Advisory Commission to the National Coordination of Dental Health. This resulted in the drawing up of a document entitled Guidelines on the National Policy for Dental Health , ratified by the 3rd National Conference on Dental Health. The NPDH now presents symptoms of growth as well as those of early degeneration. As potential internal weaknesses, one can cite the improper management of financial resources in particular and the growing tendency of the NPDH to be characterized as a provider of specialized odontological services. However, the greatest preoccupation is that the people who did not in fact participate in drawing up the Policy (for lack of opportunity) are today the pillars of its consolidation. Those who try to understand the process of drawing up the NPDH frequently come up against the nouns group and consensus. This therefore shows a clear approximation to the Arendtian concept of power. However, the present preoccupying indexes of the internal degeneration of the Advisory Commission would point towards another form of power in the implantation phase of the National Policy for Dental Health.
Comparação entre implantes unitários de superfície tratada e não tratada por sub-tração radiográfica digital em protocolos de carga imediata e convencional
(Universidade Federal de Goiás, 2009-03-27) CARNEIRO, Luciano Sandoval; MENDONÇA, Elismauro Francisco de; http://lattes.cnpq.br/2305019128015847
Objectives: To compare by digital subtraction radiography (SR), matched to clinical evaluation, bone response to single-tooth treated (TS) and non-treated (NTS) surface implants on immediate (IM) and conventional (CO) loading protocols. Material and methods: 12 patients (8 underwent IM protocol and 4 underwent CO protocol) received 24 implants. Each subject received 2 implants (one with TS and the other NTS) homologously and bilaterally positioned in maxillae (lateral incisor, canine or premolar regions) or mandible (molar area). Standardized radiographies of each implant were taken on the day after implant placement (baseline image) and after 3, 6 and 12 months (follow-up images). SR was used for crestal bone loss (CBL) and peri-implant bone density (PIBD) measurements. The placement torque and resonance frequency (at 0, 6 and 12 months) were also measured for matching radiographic data. Results: T-test revealed no statistically significant difference in CBL between TS and NTS implants, while TS implants presented higher PIBD in the mid-implant region at 3-months recall (p = 0.04). For IM protocol, the Mann-Whitney test revealed higher CBL at 6-months follow-up (p = 0.03), greater PIBD at 12-months recall (p = 0.06; p = 0.07) and increasing PIBD through time. There was a positive correlation between primary stability and PIBD at 12-months recall (r = 0.58; p = 0.005). Conclusions: TS and NTS implants presented similar performances with regard to CBL and PIBD. IM and CO protocols were similarly successful. Primary stability was an important element in reaching greater PIBD after 1-year loading period
Reabsorção radicular apical em decorrência do tratamento ortodôntico detectada por meio de tomografia computadorizada de feixe cônico
(Universidade Federal de Goiás, 2012-02-17) CASTRO, Iury Oliveira; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683
Objective: To determine the frequency of apical root resorption in different tooth groups after the end of orthodontic treatment, detected by cone beam computed tomography. Methodology: Images of cone beam computed tomography of 30 patients who had Class I malocclusion and crowding were obtained before and after orthodontic movement. The treatment with fixed appliances was developed based on the Roth prescription. A total of 1256 dental roots were evaluated based on the measurement of linear length between root apex and incisal/cusp. It was an epidemiological, prospective, longitudinal and intra individual study. Results: The mean age of patients was 13 years, 11 were male and 19 female. One hundred percent of the patient presented teeth with apical root resorption, 46% of the roots avaluated was affected. The teeth showed higher extent of apical root resorption were upper lateral incisors, lower lateral, upper central, lower central, upper and lower first molars (p <0.05). By analyzing the roots individually, there was a high frequency of apical root resorption in maxillary central incisors (73%), maxillary lateral incisors (73%), mandibular central incisors (72%), mandibular lateral incisors (70%) and distal roots of mandibular first molar (63%). There was a low frequency of apical root resorption in the buccal roots of the maxillary second premolar (17%), distovestibular and palatine roots of maxillary second molar (18%) and distal roots of mandibular second molar (20%). The results showed that there was no association between frequency of resorption and gender (p> 0.05). The number of resorption did not vary with age when evaluated at age 11 to 16 years (p> 0.05). Conclusion: The apical root resorption was detected in 46% of the roots of teeth submitted to orthodontic treatment, diagnosed by cone beam computed tomography. The most affected teeth were central incisors, lateral and first molars.
Saúde bucal de crianças hospitalizadas: percepções e atitudes de acompanhantes
(Universidade Federal de Goiás, 2010-04-27) CORTINES, Andréa Araujo de Oliveira; COSTA, Luciane Ribeiro de Rezende Sucasas da; http://lattes.cnpq.br/9906371509661305
Attitudes towards oral health may contribute to the recovery of hospitalized child s general health. For the development of educational and preventive programs directed to this public, it is necessary to comprehend the perceptions about oral health according to care-givers, in order to elaborate a project of health education, giving importance to the knowledge and attitudes of this group. A qualitative research was accomplished through interviews, based on semi-structured itinerary. The interviews were recorded in audio-cassette, transcribed, typed and printed to obtain the material of the study: the interviewees speeches. The data analysis was based on the content analysis, thematic modality, accomplished through the exhausting reading of all the interviews in order to extract the meaningful words and sentences, getting them into sense nuclei and later classifying them in themes. Three themes were inferred as results: The care, The oral health and The relationship between oral health and general health. In relation to the care offered to hospitalized children, it is different from that destined to the same child before getting sick and also to the other children of the family through the increase of the devotion, of the concern with the child's comfort, in order to soften the pains and the suffering and of the feeding. The subjects reports demonstrated that the concern with the oral health happens through the accomplishment of the dental care and also through the accomplishment of the oral hygiene at least three times a day, using toothpaste and toothbrush. However it is noticed that there is not to be concern with other risk factors as the diet and the use of medicines and not even in following some orientations received by surgeon-dentists or to look for a preventive treatment. Some of the care-givers also demonstrated difficulty in accomplishing or supervising the child's oral hygiene. For some of them, the hospitalization is not a factor which makes more difficult the accomplishment of the oral hygiene, because this is a habit, while for other it is, because they leave the domestic routine. In relation to the theme "relationship oral health - general health", it is noticed that they believe in a bi-directional relationship among them, however, they think that what really interferes in the child's oral health is not the disease itself, but the fact of using antibiotic. The conclusion was that the companions' perceptions about the hospitalized children's oral health follow the common sense that the action of brush the teeth is part of the corporal hygiene and that this practice should happen three times a day, with the use of toothbrush and toothpaste, without considering other risk factors. The care-givers get to notice their children's real oral conditions and try to make them better with the healing treatment and not avoiding them through the prevention. The attitudes in relation to health are permeated by faiths as that the antibiotic, "strong medicine", destroys the teeth. Actions in health education must be developed together with the whole multiprofessional team of health and with the target group in order to promote a change in the way people see the process health-disease.
Avaliação da expressão da granzima b e sua relação com o prognóstico do carcinoma espinocelular de boca
(Universidade Federal de Goiás, 2010-02-26) COSTA, Nádia do Lago; BATISTA, Aline Carvalho; http://lattes.cnpq.br/0199082642322002
The cytotoxic T lymphocytes (CTL) and natural killer (NK) cells are more effective in fighting cancer because these cells recognize tumor cells and release cytotoxic granules rich in perforin and granzyme B (GB). The perforin form pores in tumor cells allowing the influx of GB. When inside the cell, the GB promotes tumor cell death through apoptosis. In this context, high expression of GB into the microenvironment of different types of cancers has been considered a key event for effective antitumor immunity. Therefore, the objective of this study was to identify and quantify GB+ cells, peri- and intratumoral, and its relationship with clinical prognostic parameters (size of the primary lesion, location, metastasis and survival) and microscopic (microscopic grading and cell proliferation index and apoptosis of neoplastic cells) of squamous cell carcinoma (SCC) of the oral cavity. GB+ cells were identified by the technique of immunohistochemistry, a method of polymer, in 20 samples from patients with SCC of the oral cavity that had metastasized to cervical lymph nodes and in 35 samples from patients with SCC of the oral cavity without metastasis to cervical lymph nodes. Our results showed that the density of peritumoral GB+ cells was significantly higher in the non-metastatic SCC when compared with metastatic group (p=0.03). In addition, patients with high expression of peritumoral GB had a longer survival than those with low expression of this protease (Kaplan Meier, Log Rank p=0.02). We showed also that patients with high density of peritumoral GB+ cells showed a low percentage of neoplastic cells bcl2+ (antiapoptotic protein) (P=0.004) and high density of neoplastic cells Bax+ (apoptotic protein) (p=0.031) when compared to the group of low density of peritumoral GB+ cells. In agreement with these data, patients who had a high density of peritumoral GB+ cells showed high expression of Annexin V by neoplastic cells. Additionally, the density of GB+ cells intratumoral and peritumoral was significantly higher in the T1 and T2 (39.44±7.21 and 14.61±3.60, respectively) when compared to T3 and T4 (31.03±3.76 and 11.90±1.88, respectively), however these results were not statistically significant (p>0.05). The association between the density of cells GB+ and other characteristics of SCC of the oral cavity, such as location, tumor proliferation and tumor grading was not observed. Our findings suggest that the increased of expression of GB in tumor microenvironment of SCC of the oral cavity may have beneficial effect against neoplastics cells, contributing to apoptosis of these cells, lower lymph node involvement and increased survival time of patients.
Expressão de reguladores da reabsorção óssea (RANK/RANKL/OPG) e formação óssea (osteocalcina) em lesões realcionadas ao osso e osteossarcoma
(Universidade Federal de Goiás, 2010-03-19) ELIAS, Larissa Santana Arantes; MENDONÇA, Elismauro Francisco de; http://lattes.cnpq.br/2305019128015847
The RANK (receptor activator of nuclear factor Kappa-Beta)-RANKL (receptor activator of nuclear factor-kappa beta ligand)-OPG (osteoprotegerin) system is the principal means of differentiating and activating osteoclasts. Changes along this path have been associated with various bone related lesions (BRL), whether benign or malignant, such as osteosarcoma (OS). This system induces resorption when it is deregulated, and in the case of LROs, by replacing the bone tissue for fibrous tissue with the presence of various forms of ossification. And in this same context another protein, osteocalcin (OC), a marker of late ossification, plays a key role in the diagnosis of these lesions. This being so, the objective of this study was to identify, quantify and compare cell RANK+, RANKL+, OPG+ and OC+ in lesions of the jaw with bone involvement: ossifying fibroma (OF), fibrous dysplasia (FD), simple bone cysts (SBC), central giant cell lesions (CGCL) and osteosarcoma (OS) so as to contribute to understanding the pathogenesis and establishing the diagnosis of these lesions. RANK+, RANKL+, OPG+ and OC+ cells were identified by the technique of immunohistochemistry, a method of immunoperoxidase and polymer, in 10 samples of OF, FD, SBC, CGCL and 5 samples of OS. Our results showed that all samples were positive for RANK, RANKL, OPG and OC. In the stromal fibroblast-like cells, the OF (P<0.001), CGCL (P=0.007) and OS (P=0,058) presented a greater expression of RANKL than OPG, in contrast with both the SBC (P=0.003) and the FD (P<0.001). As for bone-matrix (cells around bone/osteoid-osteoblast and osteoclast), the OS (P=0.24) and OF (P=0.001) samples demonstrated a higher RANKL immunoreactivity and and a lower in FD (P=0.001) and SBC (P=0.4) samples. In terms of OC, a higher expression was shown in FD, SBC, and OS (P=0.008). Our results suggest that OF, CGCL and OS express bone metabolism regulators, which may be related to increased bone resorption in these lesions. In addition, osteoblastic involvement was seen in FD and OS. Note: The superscript + is where it appears. Programs to copy some formatting errors.
Os Processos Formativos dos Professores dos Cursos de Graduação em Odontologia no Estado de Goiás e o Contexto de Implementação das Diretrizes Curriculares Nacionais
(Universidade Federal de Goiás, 2010-08-16) FRANCO, Lila Louise Moreira Martins; QUEIROZ, Maria Goretti; http://lattes.cnpq.br/7079676967280121; MARCELO, Vânia Cristina; http://lattes.cnpq.br/6650368201862218
The professors of the graduation courses in Dentistry are considered unprovided of certain types of knowledge which are inherent to the practice of higher education due to the fact that they are graduated in a bachelor‟s degree mode. Therefore, a question arises: how are they educated to practice teaching? For this reason, we present a short history about the interface health and higher education and this professor‟s educational processes. We also discourse upon the National Curriculum Guidelines for the graduation courses in Dentistry because those guidelines propose changes in the profile of the professionals, which demand a need for changes in the profile of the professor who educates those professionals. The present study aimed at analyzing the educational processes of the professors of the graduation courses in Dentistry and the context of implementation of the National Curriculum Guidelines. For this purpose, we investigated the pedagogical projects of the courses regarding teaching; we raised the professors‟ academic profile, the identification of experiences related by professors about their educational processes and perspectives in the context of implementation of the National Curriculum Guidelines, as well as the verification of the relation of those processes and the professors‟ knowledge of that document. We developed the study in the State of Goiás within the years of 2009 and 2010 and we used a quanti-qualitative methodology in three stages: analysis of documents, a self-applicable questionnaire, and a semi-structured interview. We opted for thematic analysis, which is one of the types of content analysis, and we made use of data triangulation. The main results we found were: there is little mention of potential educational processes in the Pedagogical Projects of the courses; the educational processes we found include family influence, schooling, interpersonal relationships, culture, socio-geographical characteristics, leisure activities, and professional experience. The professors presented little knowledge about the National Curriculum Guidelines and we did not find a direct relation between this knowledge when one or another educational process in present. The professors‟ formation does not take place in the professional dimension only. It is also personal, and the actors who are involved in this formation can be gathered as individual, collective, and/or institutional
Expressão da proteína Ki-67 e da glicoproteína MUC1 em carcinomas mucoepidermóide de glândulas salivares menores
(Universidade Federal de Goiás, 2009-05-22) GONÇALVES, Cintia Ferreira; BATISTA, Aline Carvalho; http://lattes.cnpq.br/0199082642322002; MENDONÇA, Elismauro Francisco de; http://lattes.cnpq.br/2305019128015847
Aims: Investigate the prognostic significance of cellular proliferation indexes and mucosecretional activity in Mucoepidermoid Carcinoma (MEC) of oral cavity minor salivary glands using the immunoexpression of the protein Ki-67 and the glycoprotein MUC1 in young people and adults, by correlating these markers to clinical and pathological parameters. Material and methods: From 1987 to 2007, 35 cases of MEC were diagnosed in minor salivary glands. Demographic clinical data were obtained from clinical records, the microscopic diagnosis was revisited and the specimens were reclassified in terms of histologic grading, according to the system used by Batsakis & Luna (1990). Qualitative and quantitative analyses of the expression of Ki-67 protein and MUC1 glycoprotein, obtained through immunohistochemistry, were correlated to the variables: age, gender and histologic grading. Results: The cases of MEC (n=35) were more frequently found in people over thirty (60%), with predilection for females (1.7:1) and occurred most frequently in the hard palate (54.3%). Of the cases studied, 42.9% were low grade, 37.1% intermediate and 20% high grade. A greater expression of Ki-67 was found for adults while the greater expression for young people was MUC1, although neither result was statistically significant (Ki-67 / P=0.44 e MUC1 / P=0.5). In addition no prognostic relation was seen between male and female, despite the greater expression of both markers for males (Ki-67 / P=0.58; MUC1 / P=0.4). In terms of histologic grading intermediate and high grade tumors presented a greater expression for both markers, but without any statistical significance (Ki-67 / P=0.18; MUC1 / P=0.6). Conclusions: MEC in minor salivary glands could present a tendency of lesser aggressiveness in younger patients when compared to adults; in females when compared to males, and in tumors of low histologic grade when compared to those of intermediate or high grade. Furthermore, this tumor may have a tendency to higher mucossecretory activity in young than in adults, in males than in females and in intermediate and high grade tumors.
Cárie dentária, aquisição de açúcar e fatores socioeconômicos em crianças e adolescentes brasileiros: um estudo ecológico
(Universidade Federal de Goiás, 2010-12-22) GONÇALVES, Michele Martins; FREIRE, Maria do Carmo Matias; http://lattes.cnpq.br/6056344372250078
The aim of this study was to investigate associations between dental caries experience at ages 5, 12 and 15-19 and household sugar availability in the Brazilian capitals using data from the Household Budget Survey 2003. Associations between dental caries, socioeconomic indicators and access to fluoridated water supply were also tested. The data on caries experience were obtained from the national survey of oral health in 2003 and socioeconomic indicators from the United Nations Development Programme. Correlation tests and linear regression were used in the statistical analysis. The availability of soft drinks and per capita income were negatively associated with the DMFT at age 12. At 12 and 15-19 years-old dental caries experience was also negatively associated with the HDI and fluoridated water, and positively associated with the rate of illiteracy. The results indicate the importance of socioeconomic factors and of fluoridation water in dental caries experience, which seem to influence the effect of sugar.
Avaliação de dispostivo alternativo ao arco facial para montagem de modelos em articuladores semi-ajustáveis
(Universidade Federal de Goiás, 2011-04-26) HARTMANN, Roberto; ROCHA, Sicknan Soares da; http://lattes.cnpq.br/8256226109956656
The aim of this study was to analyze the face-bow and three different camper planes, 0°, 15° e 20°, regarding the placement of maxillary cast and the fidelity of reproduction of occlusal contacts of casts mounted in semi-adjustable articulator arcon type. Were selected nine students over 18 years showing complete natural dentition whose cast maxillaries presented stable on surface plane. The 36 cast maxillaries were mounted in a single semi-adjustable articulator using four different techniques: facebow, camper plane of 0º, camper plane of 15º and camper plane of 20º. The first analysis was considering the position of the cast maxillary. On each side of the articulator were defined three points: one in the articulator, the condylar region (A) and two in the cast (B and C). Point B was positioned at the lower first molar buccal groove (intercuspal region) and C at the midpoint of the first molar (mesio-distal), 1cm above the intercuspal region. Through the digital camera (Rebel XTi) positioned at a standard distance of 1.15 m of articulating images were obtained on each side of the articulator. Using the software Image J was given angle "α" formed by the intersection of the line segments AB and BC. For analysis reproducibility of occlusal contacts the cast mandibles were mounted in maximum intercuspation. The points of contact clinical and casts were recorded with carbon Accufilm. The area (mm2) of the points of contact on the lower left first molar of each group was quantified in Image J software, using images obtained with a digital camera (Rebel XTi). As for the positioning of the cast maxillary no significant difference was found just between the plane and the face-bow (p<0.001). None of the mounting techniques were effective in reproducing clinical contact points (p<0.001).
Critérios de Diagnóstico para Pesquisa das Desordens Temporomandibulares (RDC/TMD): avaliação de radiologistas sobre adequação
(Universidade Federal de Goiás, 2011-02-28) MACHADO, Luciana Pimenta e Silva; RIBEIRO-ROTTA, Rejane Faria; http://lattes.cnpq.br/9466795079344876
The aim of this study was to investigate the opinion of specialists in radiology, from different parts of the world, regarding to the proposed criteria for image acquisition and interpretation by Computed Tomography (CT), Cone Beam Computed Tomography (CBCT) and Resonance imaging (MRI) in diagnosing temporomandibular joint disorders (DATM) as part of Diagnostic Criteria for Research of Temporomandibular Disorders (RDC/TMD). Radiology specialists were invited by email to participate as volunteers in the study from three different eligible populations: researchers with publication DATM indexed on PubMed, ORADLIST members and individual contact. The link to access the questionnaire was mailed to volunteers interested in participating who matched the inclusion criteria. The sample was composed of specialists in radiology with experience in the interpretation of sectional images (CT, CBCT and/or MRI) of the temporomandibular joint (TMJ) who answered a questionnaire in English, which was developed and maintained online (LimeSurvey 1.87+). In a three months period, two recalls were sent and a period of 40 days after the last notification was given for responses submission. The questionnaire was divided into three parts with closed and open questions. Part I was related to issues of participant identification (gender, age, country of activity, area of activity, time and experience as a radiologist in the interpretation of sectional images of the TMJ and monthly time dedicated to the activity of interpreting sectional images of ATM). Part II contained questions related to the adequacy of the proposed criteria for the interpretation of sectional images of the ATM as part of the RDC/TMD. The criteria were presented into two columns' tables and the participants were asked whether that set of criteria was considered adequate or not for assessement and diagnosis of TMJ osseous and non-osseous tissues according to each imaging modality. If the respondent not considered criteria appropriate, he/she should indicate what type of suggestion: if insertion of new items, the modification or deletion of existing items. Part III had questions related to the need to include a minimal technical protocol for TMJ CT, CBCT and MRI acquisition as part of the RDC/TMD. If deemed necessary, the respondent should indicate which would be his/her suggestion protocol for acquisition of each imaging technique (CT, CBCT and MRI). Fifty-seven radiologists from different countries completed the questionnaire. The results indicate that 87 to 98% of radiologists considered the criteria adequate and that 81.6% of respondents considered necessary to include a minimal technical protocol for CT, CBCT and MRI acquisition as part of the RDC/TMD. Two to thirteen percent of respondents suggested insertion, modification and deletion of items in the proposed criteria. Ninety percent of respondents considered necessary to include a minimal technical protocol for CT/CBCT and 81.7% for MRI. We conclude that, according to the opinion of the worldwide community of specialists in radiology, the need for adjustments in the criteria for assessment of sectional images of the ATM is minimal, however, the need for the inclusion of a protocol to acquire minimal technical parameters of those images as part of protocol standardization of studies using the RDC/TMD is clear.
EFICÁCIA DE DIAGNÓSTICO DA TOMOGRAFIA COMPUTADORIZADA E RESSONÂNCIA MAGNÉTICA NO TRATAMENTO DAS DESORDENS DA ARTICULAÇÃO TEMPOROMANDIBULAR: UMA REVISÃO SISTEMÁTICA
(Universidade Federal de Goiás, 2009-04-22) MARQUES, Karlla Dias Siqueira; RIBEIRO-ROTTA, Rejane Faria; http://lattes.cnpq.br/9466795079344876
Diagnosis of disorders affecting the temporomandibular joint (TMJ) is a difficult task for many reasons. These include the structural and functional complexity of this joint, the multifactorial origin of these disorders and limited knowledge of their natural course, the presence of common symptoms among its various subclasses and other craniofacial conditions. If the premise for effective treatment is a correct diagnosis, it is clear that the treatment of these disorders is not any less complex than their diagnosis. The aim of this study was to do a systematic analysis of the literature in relation to proof of the therapeutic efficacy of computed tomography (CT) and magnetic resonance imaging (MRI) in the treatment planning of TMJDs (disc displacement, inflammatory disorders without systemic involvement or osteoarthosis). This systematic review was comprised of three steps: (1) Specifying the problem and the inclusion/exclusion criteria used in the publications; (2) Formulation and detailing of a plan to conduct the literature search; (3) Interpretation and integration of the evidence in the studies and formulation of recommendations based on the quality of the evidence. The bibliographical search was undertaken in PubMed and Cochrane Library databases from January 1966 to July 2009, using specific indexed terms, selected according to the objectives. The titles and abstracts found were analyzed by three examiners and the publications fulfilling the inclusion criteria were selected. The same three examiners read the full texts of these selected publications, and extracted data with the help of a previously drawn up protocol. A publication was considered relevant and included in the review when its results expressed any type of impact of the information obtained with CT and MRI on the treatment of disc displacement, local inflammatory disorders or osteoarthosis therapeutic efficacy. Publications considered relevant were interpreted with the aid of the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool and publications that critically evaluate systematic reviews. Results: The literature search yielded 584 titles and abstracts, of which 257 were selected and read in full text. One study was judged relevant. This study evaluated evidence of the efficacy of magnetic resonance imaging (MRI) in the diagnosis of disc position and configuration, disc perforation, joint effusion, and osseous and bone marrow changes in the temporomandibular joint, but no publication reported diagnostic thinking efficacy or therapeutic efficacy. The absence of studies on the therapeutic efficacy of CT and MRI on TMJD reinforces the need for investment in decision-making studies; meanwhile, sectional imaging tests should be prescribed with caution, especially when health budgets are limited.
Motivos determinantes da eleição ou recusa de tipos de tratamentos protéticos em desdentados parciais
(Universidade Federal de Goiás, 2008-03-03) MARTINS, Rafael Ragonezi; LELES, Claudio Rodrigues; http://lattes.cnpq.br/6740286066154410
The aim of the study was to explore preferences and reasons for choosing or refusing prosthetic treatments in partially edentulous patients. Clinical and oral-related quality of life measures were collected from 165 patients undergoing dental treatment in undergraduate clinical activities in the School of Dentistry of the University Federal of Goiás. Reasons for choosing or refusing prosthetic treatments were investigated using an instrument containing 32 questions about the importance of these items for the patient s decisions about treatment in a 5-point Likert scale, ranging from 1 (no importance) until 5 (absolutely important). Descriptive statistics, chi-square and ANOVA were used to compare patients preferences according to clinical independent variables. Discriminant analysis was used to analyze the impact of patients reasons for choosing or refusing removable (RPD), fixed (FD) or implant (ID) prosthesis. Results showed that older patients (p<0.001) and with greater OHIP scores (p<0,05) were more likely to choose for removable partial dentures and implant prosthesis were preferred in patients with higher school levels (p<0.01). Discriminant functions reveal that the desire of having a fixed or removable appliance had great impact on patients decisions. The removal of natural teeth structure was the main reason for refusing conventional fixed dentures and cost had great impact on refusing implant dentures. Overall agreement percentages between actual patients decisions and predicted by discriminate analysis were over 90% for all types of treatment. It was concluded that acceptance or rejection of prosthodontic modalities have great variations among patients and individual perceptions are important determinants of treatment decisions. The main reasons for choosing or refusing treatments focused in this study can be used to guide shared decision making process, providing treatments that better match patients expectations and desires
Estudo comparativo da densidade radiográfica de diferentes cimentos odontológicos restauradores à base de ionômero de vidro.
(Universidade Federal de Goiás, 2007-10-05) MELO, áureo Honorato e; SOUZA, João Batista de; http://lattes.cnpq.br/0642108682158061; FREITA, Gersinei Carlos de; http://lattes.cnpq.br/8530071658595530
Glass ionomer cements are generally represented by a combination of a powder, which main components are alumina (Al2O3 ), silica (Si2O3 ) and calcium fluoride (CaF2 ), and a liquid, which is an aqueous solution basically compound of polyacrilic acid and tartaric acid. Its excellent features have been described since the 1960 s, and some of these are the radiopacity and fluoride release. The aim of this work is to study the radiopacity measured by radiographic exposures of the following restorative glass ionomers: Vidrion R (SS White Manufacturing Ltd, Gloucester, England); Chemfil (DENTSPLY DeTrey, Konstanz, Germany); Vitro Molar (DFL); Maxxion R (FGM Dental products Ltd); Riva self cure powder and liquid and Riva self cure in capsules (Riva SC, SDI Ltd, Bayswater, Australia) and to make comparisons among them. Then, different radiographic densities from an aluminum scale were attained and they could be compared and used in the clinical work. The specimens were made using standard glass plates (25,4 x 76,2 x 1,0 mm) manufactured by Global Trade Technology and they were perforated by a 5mm bur (number 5, Black & Decker, Brazil) especially used for glass. For the radiopacity evaluation, the samples were radiographed using three different types of films, which are the following: Kodak Dental Intraoral ESpeed Film (EASTMAN KODAK Co., Rochester, N.Y.); Contrast DFL DV-58 (DFL Ltd); and Agfa Dentus M2 Confort (Heraeus Kulzer Inc.). A 99,5% pure aluminum step wedge and a Gnatus XR 6010 X-ray equipment were utilized in this work. The data were collected by 5 examiners, who were properly calibrated, and analyzed by Friedman and Kolmogorov-Smirnov tests. The results showed no statistical differences among the averages of each examiner comparing the cements and the films. And the results also showed that all the cements present radiographic density average values below 1.
Comparação do comprimento de trabalho do canal radicular usando tomografia computadorizada de feixe cônico, radiografia periapical e localizador apical eletrônico
(Universidade Federal de Goiás, 2012-02-13) MORAIS, André Luiz Gomide de; ALENCAR, Ana Helena Gonçalves de; http://lattes.cnpq.br/2039898015468283; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683
Introduction Strategies to obtain the working length to prepare and fill the root canals has been relevant theme of discussion in endodontics. The purpose of this study was to compare in vivo the canal root working length measures determined by cone beam computed tomography (CBCT) images with the ones obtained by using periapical radiograph and electronic apex locator. Methods The root canal working lengths of 30 single-rooted teeth from 19 patients whose diagnosis was apical periodontitis were evaluated. Initial periapical radiographs for diagnosis and treatment planning, employing the parallelism technique, were taken. CBCT images were acquired with i-CAT system (aiming of diagnosing the cases of apical periodontitis that showed to be complex and doubtful) and measured with specific function of i-CAT software. The coronal opening was made, the root canals were irrigated with sodium hypochlorite solution 2.5%, being performed the exploration and initial emptying of root canal. After, the preparation of the inlet orifice and of the cervical root third was carried out . The minor foramen was located using Root ZX® locator by advancing a stainless steel K-file that best suited the root canal, according to the manufacturer´s instructions. The radiographic measurement was made by advancing a stainless steel K-file in the root canal, until its tip was 1.0 mm from the root apex (determined from the measures obtained by the electronic ape locator). These 3 working length were tabulated and compared. Kruskal-Wallis test was used to analyze the differences between working lengths methods. The significance was set at α=5%. Results The mean values and standard deviations for working length determination by electronic apex locator, periapical radiograph and CBCT images were 21.5 ± 3.1, 21.32 ± 3, 21.4 ± 2.7, respectively. Significant differences were not verified statistically (P>0.05). Conclusions CBCT images working length determination showed to be as similar as the determinations obtained by using periapical radiograph and electronic apex locator.
Integralidade e saúde bucal na percepção de participantes dos movimentos sociais do SUS
(Universidade Federal de Goiás, 2007-10-19) NOVAIS, Tatiana Oliveira; MARCELO, Vânia Cristina; http://lattes.cnpq.br/6650368201862218
Integrality is a principle of the Brazilian Unified Health System (SUS) defended by the sanitary reform movement. It is a polysemic and democratic term for it considers several perceptions. For that reason, other kinds of knowledge were included in this paper in addition to the scientific one. Oral health can also be understood in various ways, since its limited meaning of mouth until a collective notion regarding health promotion precepts. Therefore it is possible to discuss integrality focusing on oral health. This research aims to identify possibilities for action seeking integrality for oral health in SUS and in social movements, according to their participants perceptions. Key people in knowledge building were selected to be interviewed, connecting scientific and popular knowledge, SUS and social movements participants. The methodology used was qualitative research and content analysis. The findings were divided into four categories: different meanings of integrality, perceptions of oral health in SUS, perceptions of oral health in social movements and possibilities for actions. Each category was then subdivided into subcategories. The main conclusions about the action possibilities are those related to re-integration, allowing a re-totalizing paradigmatic posture of the reality, the use of problem based learning strategies both in professional forming and in permanent education of SUS workers, building public policies and health models of attention aiming the integrality. Although health promotion was not described as a specific category, it undergoes most possibilities for actions mentioned, acting as a structural framework.
Avaliação de erros operatórios durante o preparo do canal radicular após o uso de instrumentos rotatórios de níquel-titânio realizados por estudantes e especialistas
(Universidade Federal de Goiás, 2010-02-26) OLIVEIRA, Henrique Cesar Marcal de; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683
The aim of this study was to determine the errors of procedures that occurred during the preparation of curved root canals after the use of instruments níqueltitânio powered motor managed by specialists in endodontics and dental students. Forty upper and lower molars of humans were randomly divided into two groups of 20, according to traders: G1A-(Molars, specialists in endodontics), G1B-(lower molars, specialists in endodontics), G2A-(molars, dental students), G2B-(lower molars, dental students). The ProTaper Universal System was used to prepare all root canals. The AH PlusTM associated with gutta-percha was used with lateral condensation technique for obturation of all canals. Periapical radiography and cone beam computed tomography (TCFC) were obtained to verify procedural errors occurred during the preparation of root canals. Two examiners evaluated all images for determining the presence or absence of instrument fracture, root perforation (cervical, middle or apical) and deviation original path of the root canal (apical transport). The data were statistically analyzed employing the Chi-square test. The significance level was 5%. The rate of fractured instruments showed no significant differences in the level of experience of operators (p = 1.000). Root perforations and transport apical occurred more frequently in the group of students, without significant differences. While there have been some procedural errors during root canal preparation with experienced and inexperienced operators, the results suggest that the introduction of tools of nickel-titanium engine-driven education
Sítios implantáveis da maxila e mandíbula: correlação entre aspectos clínico-radiográficos e histomorfométrico-moleculares.
(Universidade Federal de Goiás, 2011-03-04) PEREIRA, Andrea de Castro; BATISTA, Aline Carvalho; http://lattes.cnpq.br/0199082642322002; RIBEIRO-ROTTA, Rejane Faria; http://lattes.cnpq.br/9466795079344876
The study of bone microarchitecture and its molecular aspects may provide new information for better understanding of "bone quality". Histomorphometry is a recommended reference method for bone-dimensional analysis. At the molecular level, possible changes in the process of resorption and bone formation has not been studied in different patterns of bone "normal." Objective: To analyze the correlation between clinical, radiographic and histomorphometric bone-molecular sites for dental implants in humans. Methods: The sample consisted of 44 sites of 32 volunteers implantable. These sites were classified according to three different methods: a classification based only on periapical and panoramic images (PP), the classification of Lekholm and Zarb, based on methods of diagnostic imaging in conjunction with the tactile perception of the surgeon during surgery and classification of Lindh. The bone specimens were removed with the use of trephine during the first drilling site for placement of dental implants. The samples were subjected to staining with hematoxylin-eosin and histomorphometric analysis to obtain the following histomorphometric parameters: trabecular thickness (Tb.Th), trabecular number, bone volume fraction (BV / TV), trabecular bone surface area by bone volume (BS / BV), bone surface fraction and trabecular separation (Tb.Sp). We also made the technique for analysis of proteins immunoistoquímica RANK, RANKL, OPG and osteocalcin (OC) in samples of bone tissue. Results: Rankings PP & L and Z correlated with BV / TV, BS / BV, Tb.Th and Tb.Sp. The classification of Lindh did not correlate with any histomorphometric parameter. L & Z show differences between types when compared to bone BV / TV, BS / BV, Tb.Th and Tb.Sp. We found a weak correlation between ratings PP / L & Z and the expression of regulators of bone metabolism (RANK, RANKL, OPG and OC). Conclusions: It may be that the subjective ratings conculir types of bone are influenced by aspects of histomorphometry and the regulatory molecules of bone remodeling seems not to exert influence in the morphology of the maxilla and mandible.
Desajuste Marginal de Infra-estruturas metálicas de próteses fixas sobre implantes considerando tipos de pilares, materiais e solda a laser
(Universidade Federal de Goiás, 2005-03-24) PEREIRA, Richard Esteves; GUILHERME, Aderico Santana; http://lattes.cnpq.br/8753467344512117
The adaptation precision of metallic structures to implant abutments is a very questionable subject and the scientific literature lacks about the alloy that shows an adaptation closer to the ideal. This study had the proposal of: evaluating the vertical marginal misfit levels (in μm) using a digital microscope of one-piece and after laser welding metallic structures of total fixed implant supported prosthesis casted in Nickel-Chrome, Nickel-Chrome-Titanium-Molibidenium and Palladium-Silver alloys and commercially pure Titanium, over two different kinds of abutments and, also, associate the misfit results observed at the one-piece structures phase with the data obtained after the laser welding treatment. After the fabrication of two master models, 40 pre-fabricated copings for both Estheticone and Micro-Unit type abutments were used at the survey. Eight metallic structures were casted with Ni-Cr, Ni-Cr-Ti-Mo, Pd-Ag and Ti-c.p., being two structures for each alloy. The vertical misfit values concerning the relation of the metallic structures and implant abutments from all alloys and on both stages one-piece and after laser welding were tabulated and then submitted to statistical tests. The values were exposed to the ANOVA and the significant statistic means were compared by the Tukey test considering a 5% significance value (p<0.05), as well as the standard deviation. The results evidenced that the one-piece structures showed misfit, but the mean values did not present statistic significant differences. The material (alloys) analysis showed that the Ti-c.p. did not show discrepant mean values, but the same did not occur with the other alloys. The comparison between all alloys showed no significant statistical differences, and, the Pd-Ag alloy (control group) showed the higher misfit mean values at the one-piece phase. The relation between the one-piece and after laser welding phases showed the presence of statistic significant values, based on the mean values (onepiece= 0.0953 μm / laser welding=0.0452 μm) and the marginal vertical misfit after laser welding appeared significantly decreased.
Ocorrência de anormalidades nos seios maxilares detectadas por meio da tomografia computadorizada por feixe cônico (TCFC) em pacientes assintomáticos
(Universidade Federal de Goiás, 2011-03-18) REGE, Inara Carneiro Costa; LELES, Claudio Rodrigues; http://lattes.cnpq.br/6740286066154410; MENDONÇA, Elismauro Francisco de; http://lattes.cnpq.br/2305019128015847
The use of cone beam computed tomography exam (CBCT) has increased greatly in recent years in dentistry, so there is much discussion about the role of the dentist in evaluating the anatomical structures near the maxillo-mandibular. Currently we do not know the occurrence of abnormalities in the maxillary sinuses in a large sample of CBCT examinations of dental patients with different indications. The aim of this study was 1-to investigate the occurrence of maxillary sinus abnormalities using cone beam computed tomography (CBCT) exams of asymptomatic patients, 2- identify the frequency, type and location of these findings, and 3- its association with the proximity of periapical lesions and inflammatory changes in the maxillary sinus.1113 CBCT exams were evaluated by two examiners to identify the presence or absence of abnormalities of the maxillary sinus. Cases with abnormalities were reevaluated for identification of the type of the abnormality and location within the sinus. The presence and proximity of periapical lesions in the upper posterior teeth to the lower sinus wall were recorded. Data were analyzed using descriptive statistics and chi-square test. Inter-rater agreement was calculated using Kappa statistics. Abnormalities were diagnosed in 760 (68.2%) cases (kappa coefficient 0.83). There was a significant difference between genders, showing greater occurrence in males (p<0.001). No difference in the occurrence of abnormalities was observed regarding age groups (p>0.05). Mucosal thickening was the most prevalent abnormality (66%), followed by retention cyst (10.1%) and opacification (7.8%). The most frequent location of sinusal abnormalities were in the inferior wall (46.2%), anterior (29%), medial(25.7%) and lateral wall (21.5%). No association between the proximity of periapical lesion and the presence and type of inflammatory abnormalities was observed (p=0.124). The occurrence of abnormalities in maxillary sinus of asymptomatic was considered high. These findings emphasize the importance of a comprehensive interpretation by the dentomaxillofacial radiologist of all volume of CBCT images, including the entire maxillary sinus as part of the imaging exam of routine patients.

Navegar

Navegando FO - Faculdade de Odontologia por Por Programa "Mestrado em Odontologia"

Resultados por página

Opções de Ordenação